RE: VNC connection via browser not working.
-Original Message- From: Schouten, Frits JF [mailto:[EMAIL PROTECTED] I'm a bit new in the VNC thing and need some help . I've installed the VNC server on solaris 2.5.1. I'm running VNC on the host which was nominated display :6 I've started an application with it's output to display :6 On my PC I started VNCviewer which connected fine to http://myhost:5906 and, after the password was done, I got the application that was started on the server. So far so good. But I don't want to go around to every PC that need's a view and install the vncviewer, so I tried to connect using a browser. When I type in http://myhost:5906 in my browser it returns 'RFB 003.003' and nothing else. What am I missing here? Anybody have any ideas? I think you mix some things: the rfb protocol runs at port 5906, the webserver runs at port 5806. Hence browse to http://myhost:5806. On the other side, the browser is only a single binary that does not need any customization. Just dump it somewhere (in the path, like /usr/local/bin/vncviewer), give it execute rights and `vncviewer myhost:6` boosts you away. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC via web page
-Original Message- From: Richard Histon [mailto:[EMAIL PROTECTED] Help please. I successfully connect to vnc via the internet, using port 5900 and the viewer, port 5900 is opened in my router. Change the display number and add that to 5900 to change the port. It's a fairly easy hack to find this port. And vnc is not secure in any way. The encryption you might see is actually compression and wel published. I also want to connect using a web browser. That's by default on the port 100 lower than the vncviewer, (if it is not disabled). So also open port 5800 to get things going. Once you've seen it working, keep in mind, this is even less secure since you now not only provide the access but also the tools to access... My router has port 80 open, but I'm redirecting that to a webmail server If this is a kind of webserver, then peek at the page that is published at port 5800 and get that one into your other webserver. The java files can be found in any unix (linux) vnc distribution, in the .../classes/ directory. Just extract a unix zip (gz, tgz) distribution (with winzip for example). The *.vnc files in that .../classes/ directory are html templates that can be used as a template for your html pages. So can I reach VNC using a web browser, with another port? As above, you can use any other webserver on the same machine as the vncserver (that is a java restriction) as long as you know some html coding. Otherwise, you also have to open the vnc-webserver at port 5800. I don't want to stop reaching vnc remotely with the viewer. If you are from the internet, keep in mind that vnc has no security. Most security is added using ssh or variants. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: vnc in linux and vnc w/ ssl
-Original Message- when running vnc in linux, all i can see is the console. is there a way to access my linux desktop just like in windows which displays and lets me access the actual desktop of my machine? are there any special permissions in linux that have to be set? All vnc-systems are the same except the M$Windows based ones. Origionally, vnc is developped to provide a windowing system origionating from a server, showing on a remote (low cost desktop) display. Unfortunatly, this could not be done for M$Windows machines, hence the design for this platform is altered to display the console... Currently most users see the M$Windows design as the default and expect the same on unix machines. Its possible on a limited set of systems: There is an module for XFree86 (on Linux) that adds the rfb protocol to the X11 server. There is a tool that runs in/with KDE (krfb or such) that should work wherever kde is available. There is a tool that runs on some frame-buffer devices. is there any way to speed up the applet browser-based vnc with ssl? when i try it in windows, it takes up to 10 minutes before the browser loads. well, you just describe the worst scenario I can imagine. If you need something like ssh or any other security, best disable the webserver and java browser, it strips a lot of unnecessary overhead: you don't need to open 2 ports, only one (the 59xx one). you don't need to transfer the applet so ssh does not need to encrypt it. (it does so on every reload!!!) If you need the applet because there is no binary viewer for your platform, then just start it locally. If speeed is an issue and ssh is required, then disabling the vnc-compression can boost the performance on the server since there is only one compressor/encryptor running. ssh can do compression too (does it by default?) __ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Monochrome support
-Original Message- From: Murphy Marc SLUK [mailto:[EMAIL PROTECTED] Sent: woensdag 24 september 2003 15:00 We are thinking of using VAC as a remote control tool for an embedded application and have managed to get a simulation running under windows using rfbcounter. The problem is that we will be initially using the system using a 57k link (COM port) and sending the information as 8 bit per pixel increases our transmission requirements 8*, I see in the future that there will be 3bit support per pixel has there been any consideration of using 1 bit per pixel to support monochrome displays ? I think it's mainly in the rfb protocol. Does that support 1 bit 'displays' or not. If it does, then best use that. If it does not, then it can be an idea to extend the protocol to also allow 1 bit displays. However, if there is no support for 1 bit (or anything below 8 bit) in the current protocol, then you also need to update the vncviewer. A compression algorithm would then be able to be implemented to reduce overhead even more. If it is to optimize the bandwidth (thats what it should be) you should carefully select the compression algorithm. I think about the next parts: Go for run-length encoding. Is the most simple compression (not sending 8, the same pixels in a line but send '8 of the next pixels'). Use the fact that vnc can update parts of the screen. This can also be a single pixel. If you have a selected number of partial pictures you show (like characters or icons or such) then pre-encode those characters and send them as partial update. Keep in mind, specially if it is for display only, that there are more protocols. I think the streaming-video protocols are way to much overhead so don't spoil your time on them... We are looking at expanding rfbcounter to create a fairly simple embedded server and support 1 2 bit pixel modes. As the server processor is relatively low power all complex processing can be done by the client. What should be done about submitting code for the client so that changes can be incorporated into public release ? As for the public release, to follow the gpl, copy-left license, you are free to use the rfb protocol and use the rfb-counter code as an example. If you somehow extend the rfb protocol, it is nice if you upload your ideas to the public. Specially if you update the default viewer to also view your extensions. This updated viewer code also needs to be published. And to explain your update of the protocol, it would be nice if you provide an example vncserver that shows the usage like the rfb-counter. Regards Marc. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Beginner VNC User - About to have a baby!
-Original Message- From: Ralph Gaboury [mailto:[EMAIL PROTECTED] Hello: My wife is about to have a baby (due 9/25), and I've been trying to figure out how to get VNC to work through my office's firewall so that I can work from home once the baby comes. I've read through several dozen help articles, and postings to this list trying to figure it out, but the network and programming lingo is a little over my head. Thanks in advance for putting up with my Newbie ignorance. Don't bother setting up the vnc connection from home to the office, you do not get any time to use it once you are a father (as in parent). Best is to do your job before your wife delivers your child. Once the 'Newbie' is around, you are also a 'newbie'-father and gonna get a lot of experience on a totally different job. Good luck with the new baby, from an experienced father (my little girl is 5 years already ;-) CBee btw: if you like to do something with computers while the new baby is around, get a digital photo camera and dump the pictures on a website on a daily base and teach the grandparents how to see the pictures on internet while they are not around your new child... Here's my set-up: not relevant parts are removed At home, I have a Macintosh G4 running OS 10.1 (soon to be 10.2). My Mac is hooked up to the Internet through a router (Netgear Websafe) hooked up to a cable modem (Motorolla Surfboard) -- I use a router because I am also using an Analog Telephone Adapter for the Vonage voice-over-Internet service (which works beautifully by the way - e-mail me with any questions you might have about Vonage). Slightly change here: the above hardware will serve as a webserver - Ralph Gaboury [EMAIL PROTECTED] new baby at http://www.RalphGaboury.com/newbaby. ;-) ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC for embedded systems
-Original Message- From: Blackburn Andrew SLUK [mailto:[EMAIL PROTECTED] I am new to VNC, but the RFB protocol appears to be just the kind of thing I am looking for. I am working on an application with a 16-bit microprocessor running @ 20MHz driving an LCD display . We are attempting provide a feature whereby the display can be emulated remotely on a PC. RFB looks ideal with the exception that it is designed for thin clients (thick servers). If I understand correctly, the server (our 16-bit processor) would be required to have knowledge of all of the encoding methods. Not necessary, it only needs to know one (raw encoding should do) and convince the viewer it only supports that one. For what it's worth, the origional website (http://www.uk.research.att.com/archive/vnc) provided a tiny vnc-server-example to which you can connect a viewer In the viewer, you see a number (lcd-type display ;-) counting something. see http://www.uk.research.att.com/archive/vnc/rfbcounter.html for details It depends on the kind of lcd display but if it is a raster or dot-matrix one, then you can just map the lcd-pixels to vnc-server-pixels and provide that once someone is connected. (i wish my printer had such a display, just run `vncviewer printer` and see the display from miles away). Does anyone know whether it is possible to streamline the RFB protocol for execution on a 16-bit processor? Perhaps by making a concession and just adopting a single encoding format. Code space and processor bandwidth come at a premium. Then best use no compression, skips compression code and compression cpu usage. I can imagine it is a mode acceptable for all viewers. Any ideas and/or comment would be much appreciated. if the machine is equipped with buttons, you might do something with mapping keyboard hits to the buttons. If it is a touchabel lcd, you might do somethign with the mouse events. However, if it is for viewing only, just ignore the events by providing a view-only server. Regards Andrew This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC for embedded systems
-Original Message- From: Blackburn Andrew SLUK [mailto:[EMAIL PROTECTED] Sent: donderdag 18 september 2003 16:32 To: 'Beerse, Corni' Cc: 'maillist VNC Real' Subject: RE: VNC for embedded systems Thanks Corni Cou or anyone else point me to the rfbcounter server example? The web site http://www.uk.research.att.com/archive/vnc/rfbcounter.html seems to have broken. I was happy to find the old links working. It's from the origional suppliers. Unfortunatly, not all is preserved there. Did you do a search on the old and the new sites? I know I had a copy of it somewhere but it's most likely that was with a previous job, hence unreachable for me now. CBee Thanks Andrew -Original Message- From: Beerse, Corni [mailto:[EMAIL PROTECTED] Sent: 18 September 2003 14:57 To: 'Blackburn Andrew SLUK' Cc: 'maillist VNC Real' Subject: RE: VNC for embedded systems -Original Message- From: Blackburn Andrew SLUK [mailto:[EMAIL PROTECTED] I am new to VNC, but the RFB protocol appears to be just the kind of thing I am looking for. I am working on an application with a 16-bit microprocessor running @ 20MHz driving an LCD display . We are attempting provide a feature whereby the display can be emulated remotely on a PC. RFB looks ideal with the exception that it is designed for thin clients (thick servers). If I understand correctly, the server (our 16-bit processor) would be required to have knowledge of all of the encoding methods. Not necessary, it only needs to know one (raw encoding should do) and convince the viewer it only supports that one. For what it's worth, the origional website (http://www.uk.research.att.com/archive/vnc) provided a tiny vnc-server-example to which you can connect a viewer In the viewer, you see a number (lcd-type display ;-) counting something. see http://www.uk.research.att.com/archive/vnc/rfbcounter.html for details It depends on the kind of lcd display but if it is a raster or dot-matrix one, then you can just map the lcd-pixels to vnc-server-pixels and provide that once someone is connected. (i wish my printer had such a display, just run `vncviewer printer` and see the display from miles away). Does anyone know whether it is possible to streamline the RFB protocol for execution on a 16-bit processor? Perhaps by making a concession and just adopting a single encoding format. Code space and processor bandwidth come at a premium. Then best use no compression, skips compression code and compression cpu usage. I can imagine it is a mode acceptable for all viewers. Any ideas and/or comment would be much appreciated. if the machine is equipped with buttons, you might do something with mapping keyboard hits to the buttons. If it is a touchabel lcd, you might do somethign with the mouse events. However, if it is for viewing only, just ignore the events by providing a view-only server. Regards Andrew This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit:
RE: Can't run Cadence remotelly with VNC
-Original Message- From: Fernando Rangel [mailto:[EMAIL PROTECTED] Sent: maandag 15 september 2003 11:46 To: [EMAIL PROTECTED] Subject: Can't run Cadence remotelly with VNC Hello, I just set up may VNC environment. It works with many X applications but Cadence. I got those messages below: I think I'm beginning to learn Cadence from the messages in the vnc maillist. I'm sure it is a bad-behaving X11 application (learned from previous messages) but this one is new (to me). X Error of failed request: BadName (named color or font does not exist) Major opcode of failed request: 45 (X_OpenFont) Serial number of failed request: 16 Current serial number in output stream: 28 Could someone have a clue about it? It is an application that asks for a color or a font by its name but where there is no such thing found in the X11 environment. I think in your case it is a font that Cadence is asking to use but which is either not configured in vnc or one that cannot be displayed by vnc. Run `xset -query` to see the fontpath. Compare that with what you get on a display where cadence is working properly. If the fontpaths are equal, then it is most likely a font that Xvnc cannot display. If the fontpaths differ, update the Xvnc one. you can use `xset` to do it on the fly. Best add fontdirectories one by one and check carefully if each fontdirectory is accepted. btw: the order is important here. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Unable to use VNC --
-Original Message- From: Dave Clark [mailto:[EMAIL PROTECTED] Despite lots of help and suggestions from this list, I've been unable to use VNC to communicate from my office XP machine to my home Win ME machine. These programs work just fine across my small LAN at my office, but not This lan should be considdered a single network. through the internet and the routers at both ends. Both machines have DSL. Internet is an other network (actually, a network of networks). Someone at Earthlink support suggested I install a bridge or a modem instead of a router. What is that? Does anyone have any brandnames they'd be willing to suggest? Those are general terms for devices to make networks or to connect networks. To list some more of these networking devices: amplifier, hub, T-pice: parts to make a single network. Machines connected with those can see all trafic to and from all machines on the same network. Those stuff have no configuration or such. bridge, switch: parts to combine single networks to a 'virtual' single network. broadcasted trafic goes to all machines on all connected networks, directed trafic, only goes to the proper direction. Those devices most time can do without configuration, they configure themselves on the fly. router, gateway, modem: parts to inter-connect networks. Only directed trafic passes if configured to pass. Need dedicated configuration to operate properly. Some (most consumer models) can be configured from the network side. Hence, to answer your question: the earthlink support is pointing you to ease of configuration. For brandnames, there are way to many to choose from, then, I can point you to a device for sale at my side of the globe, but not available on your side... To help you, remove all stuff you don't need to get started. Once you have that going, then add security and routing step by step. To top it all off, next week I'm getting a new installation at my office with a different router from Covad instead of QWest (which is leaving the DSL business). Would really like to get this working in order to replace gotomypc.com, which is costing $20/month for maybe two usages a month. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Getting Xvnc to work with xinetd
-Original Message- From: Christopher Hogan [mailto:[EMAIL PROTECTED] Sent: woensdag 3 september 2003 7:55 To: [EMAIL PROTECTED] Subject: Getting Xvnc to work with xinetd I need help getting vnc to work with xinetd. I've followed the instructions at: http://faq.gotomyvnc.com/fom-serve/cache/65.html I use http://www.sourcecodecorner.com/articles/vnc/linux.asp for that. It focusses on RH7 but can be used on many, if not all, unix and linux machines. However, when I connect via vncviewer, all I get is a grey screen with an X pointer. How do I get a login screen? I've tried subsituting Xvnc with vncserver in xinetd. However, I then get an invalid vnc server error, even after assigning a user with the appropriate ~/.vnc folder. Who's ~/.vnc folder? It should be the one from the account that runs `Xvnc`, definitly not the one that logs-in. With the setup as on my link, the ~/.vnc folder is not used. I'm using vnc version 3.3.7 and SuSE 8.2. Reading the FAQ at RealVNC, I see it's normal to get this grey screen using Xvnc. However, everything I've found (including the default settings for xinetd under SuSE) say I should get a log-in screen. Help? If you started at the SuSE 8.2 documentation, you should know that what you want is already installed and configured out of the box. Hence: if you installed vnc from an other source, remove it. Start Yast and install vnc (all vnc parts) and you are set. Thanks, Chris Hogan ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: GNOME
-Original Message- From: Eric Walker [mailto:[EMAIL PROTECTED] Sent: donderdag 28 augustus 2003 21:45 I have my setup working on my linux box at work but some of the guys at work can't get there setup to work. I am using gnome-session as my window manager and it displays my entire session through vnc, but when others at my job try it they get the grey screen and a message saying that they already have a gnome-session running. I even tried it with the --display option but it seems to not pay attention. Any ideas? This realy asks for the setup as on http://www.sourcecodecorner.com/articles/vnc/linux.asp . Beside this setup, no user specific setup is required. Every one get a new, fresh vnc session just as at the console. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: display
-Original Message- From: Eric Walker [mailto:[EMAIL PROTECTED] after starting vnc and starting an xterm it re- runs my .cshrc and sets display variable back to my old home display, how do I stop that so that things run from command line with out having to reset the DISPLAY variable? You make several huge errors: 1: Never, Never just set environment settings in .cshrc; donnot use `setenv` in .cshrc without proper tests if it realy needs to be altered. you should use .login for that. If that one is not run (because it is not used as a login shell) then an other file (.dtlogin for CDE for example) is ther to set environment variables. Your window manager or display manager has a suitable file for setting environment variables. Detail: most of these files use borne-shell syntax: `set variable=value` followed by `export variable`. 2: Never, Never hardcode the setting of $DISPLAY in a login or resource script. If it needs to be altered, be sure you don't spoil a working value: use decent tests around it. Be sure to check both the hostname and the display number separatly. If bad $DISPLAY values are due to remote logins (telnet, rsh, rlogin and such) there are suitable alternate tools (xrsh and xon are the ones that come to mind). If the remote logon is `ssh`, that has an even beter alternate, check the documentation for details. Hence, your solution is NOT to set the $DISPLAY variable in the .cshrc file. If you start `xterm -display host:24.7` then xterm will provide the proper $DISPLAY variable. Expect that to be good. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Question - RealVNC TightVNC
-Original Message- From: Ted LeBlanc [mailto:[EMAIL PROTECTED] What is the difference between Real VNC and TightVNC? From my point of view: Origionally, there was an ATT lab in the UK that started developing vnc. After the lab closed, the development is taken over by Real VNC. Somewhere on the line, TightVNC split off to do what they want to do with it. At this point in time, I see it as follows: RealVNC sticks to the origional and provides a realy good, rock solid vnc implementation that works on all platforms, where only the platforms are the limitation. TightVNC is one of the development split-offs. These split-offs develop stuff like new compression algorithms, some security aditionals. THese kind of like to all platforms. Then there are also split-offs that develop aditional features at the cost of support for roughly half the target platforms. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Opening a session in text mode
-Original Message- From: Drakpo2001 [mailto:[EMAIL PROTECTED] I'm Christian from France. I installed VNC on py PC because the Linux server that 'im working on is in a very hot room (no clim). I'm trying to open a window in command line mode ie without opening a X-session window. How to do ? I tried to delete or change the file X-startup but without any result Some things that come to mind include: read the documentation. Roughly it says: `vncserver` and follow the instructions on screen. Then, if you have more wishes or just want it an other way: - to fetch the console (like vncserver on M$Windows) search the archive and websites for xf4vnc or the kde-equivalent (don't know the name by head) - to have a M$Terminal server like behavoure, setup as on http://www.sourcecodecorner.com/articles/vnc/linux.asp . ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: DISPLAY problem
-Original Message- From: Muzi Nkosi [mailto:[EMAIL PROTECTED] I have a vncserver running on a HP-UX machine (openveview is also running on this machine). This runs vncserver. It provides openview:1 I also have another HP-UX machine that is running Nethealth. This runs vncserver. It provides nethealth:1 from my windows machine I could with vncviewer access openview and nethealth. You access with `vncviewer nethealth:1` or `vncviewer openview:1`. Now I can only access openview only , from another terminal seesion when I try to start nethealth I ger a error message nethealth exiting 'DISPLAY' environment varibles not set. 1. I tried export DISPLAY=hostname:0.0 The $DISPLAY can/should be nethealth:1 It can also be openview:1, then it ends up at the openview display... btw: the numbers are more important than the names. The names can be any name the machine listens to, including localhost and even non at all. also get a error can't open display: hostname:0.0 That's for the graphical console, I guess it's not available. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: 4.0b3: vncviewer reading password from tty
-Original Message- From: Tim Waugh [mailto:[EMAIL PROTECTED] Apparently some people liked and used the behaviour of vncviewer reading a password from the tty, and would like to see that behaviour again in 4.0: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=102434 Although they could switch to using the -passwd=file mechanism, it would be nice to provide an option for reading the tty again. Here is a patch to do that. What do you think? I don't think vnc should do it. vnc provides proper, decent and relatively save ways to pass the password phrase without having to type the password. Why use expect if there is no need to do so? I'd regard it as a not needed usage of expect. Besides the fact that it is potentially more unsave since the expect way needs an unencrypted password, where the vnc-password-file contains an encrypted one. Then, hackers will first attack expect since they expect to find more passwords in there than with vnc. (just an other reason to not use expect...) CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Want to bypass login prompt
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] I need to set up a vncserver which will not even prompt for a password. That is possible. For unix, there are 2 ways, starting with the vncserver script and strip that down to the bone or just starting at the Xvnc binary and add options until it works. I have tried to remove the rfbauth option but the login box is still displayed - you just don't have to enter a password That's the access controll between vncserver and vncviewer. If anyone's interested I am trying to set up Oracle reports using a vncsession as the DISPLAY setting. The window is never actually displayed but it has to be defined and valid. At the moment the report just hangs and I think it's because of the password prompt. I don't think it is due to the password prompt. The password prompt is to gain access with a viewer to a server. That has noting to do with an application that needs to put its (X11-)windows on a (X11)display. For your problem, I see the next solutions: Start an X11 session without X11 security: add the -ac optiosn and don't use the -auth file option. This removes all X11 access security, just like `xhost +` does. This should suit your needs. If you need X11 access security, you have to create a decent X11 authentication file and use that file with the -auth... option (and don't use the -ac option). An other solution on this behalf is start the `vncserver` using the same account as the accout that runs the oracle applications. The first time you need to do this manually, once setup, it can be run from a script. If I manage to achieve connection, I would then want to disable any keyboard input to add some security to this server. You can leave the rfb access controll in tact. Use the -viewonly to disable the keyboard and mouse. I think you'd better twiggle a little with the Xvnc options. For a list, see `Xvnc --help`. You can give those options to the `vncserver` script too. Suzanne World Class Software Solutions. The information contained in this communication is confidential and may be legally privileged. It is intended solely for the use of the individual or entity to whom it is addressed and others authorised to receive it. If you are not the intended recipient you are hereby notified that any disclosure, copying, distribution or taking any action in relation to the contents of this information is strictly prohibited and may be unlawful. Neither the sender nor the represented institution is liable for the correct and complete transmission of the contents of e-mail, or for its timely receipt. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Sending Option Key to OSX Server from Win32 Client
-Original Message- From: Christopher Hickman [mailto:[EMAIL PROTECTED] Does anyone have any idea how to send a keypress for the Mac Option key to a Mac OS X VNC server from a Windows client? I've been scratching my head, trying to figure it out. In the viewer window, the pc-way hard to send keys are in the menu. I have information that this list of dedicated keys can be changed and/or updated. (You are right, it should also list the special apple keys...) Do you happen to have a logo and/or a menu key on your keyboard? Have you tried them? In the end, since the server is OS-X, it is an X11 display. For X11, there is an application `xkeycaps` that can show any keyboard layout (it has hunderds preconfigured) and you can 'press' every key with your mouse. It can also aid you to reconfigure your keyboard map. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: constraining Xvnc displays to a user list?
-Original Message-
From: Mike Miller [mailto:[EMAIL PROTECTED]
Sent: donderdag 14 augustus 2003 17:09
To: VNC List
Subject: constraining Xvnc displays to a user list?
I would like to be able to maintain a list of users with display numbers
If you have more than a view users, better use the setup as on
http://www.sourcecodecorner.com/articles/vnc/linux.asp . Only disadvantages,
only one viewer to a session (no more, no less). Major advantage: only setup
as above and no user specific setup. Users can pick their size and geometry
on connecting. (btw: the site focusses on RedHat. COmmercial unixes are even
simpler (only /etc/services and inetd configuration needed).
they are allowed to use with Xvnc. I couldn't rely on users to start
their Xvnc session with the right display number, so I'd need for Xvnc to
disallow initiation of sessions with the wrong display value. Is it
possible for Xvnc to do this?
No. If you want a live list, see the output of `netstat -a` for a base and
see if you can filter your live sessions from there. However, it might only
list the sessions that have a viewer-server connection, I don't know if it
lists servers without a current viewer.
If it is not possible without further coding in the source, I would
recommend that as a possible future direction. In the
meantime, I can use
a tcsh alias that will call vncserver with the appropriate
settings for
the user...
vncserver -name $USER \!* :`egrep ^$USER /etc/vncnums.list
| gawk '{print $2}'`
or something like that. Then I just won't tell the users about the
vncserver command so they'll have to use the alias instead.
Mike
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RE: VNC 4.0 Beta 3
-Original Message- From: William Hooper [mailto:[EMAIL PROTECTED] Li, Charles said: What is the difference between realvnc and tightvnc? Which is better? What is the difference between blue and red? Which is better? I, as a user, see the next differences: RealVNC: the main-stream vnc: prime target to be rock-solid and on all platforms. New features are only added if rock-solid and realy needed. TightVNC: (one of) the vnc implementations that focuses on new (internal) features, like new compressions and such. Also on all platforms. Other vnc implementations do implement external features like file transfer but sometimes lack the implementation on all platforms, like M$Windows only. Sorry to make the point that way, but that is basically what you are asking. Try both TightVNC and RealVNC and use the one that fits best in your situation. You are right that both RealVNC and TightVNC are verry stable implementations for all platforms. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC + multiple monitors
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] My question is how? I use a large and small monitor. The small one is the main desktop and the large one is graphical layout for databazse design. Will these appear as a single larger monitor under VNC or will it support :0, :1 for these two displays (using Windows sorry). :0 = smaller/main, :1 large graphical. The :1 and :2 approach is already used to address vnc-sessions to all but M$Windows vnc-servers and hence should not be used for multi-headed vnc-sessions. I do know the X11 way to address multiple monitors and hope vnc does the same/similar: The X11 display name has the next fields: [hostname[.domainname]]:[displaynumber[.subdisplay]]. Hence, subsequent monitors can be addressed by remotemachine:0.1, :0.2 and such. On unix systems, the multi-headed workstations are addressed in both ways you say, depending on the used hardware. If a workstation is equipped with 2 (or more) video-cards then the video-cards are addressed with their own display name: :0.0 and :0.1 (and subsequent numbers). If a single video-card has multiple monitor connectors, then this can be configured as if 2 different video-cards (with 2 different subdisplay numbers) or as a single, large window. For vnc on M$Windows, I think the approach is similar. If the M$Windows system just sees a sinlge display adapter and spreads its windows over both displays, the vnc-session most likely provides a large (scrollable) window. I don't know details but I think this knid of multiple display is already supported by one or more of the vnc implementations. If the M$Windows machine sees multiple displays (and cannot spread a window over multiple displays but just on one or the other) then vnc most likely provides multile windows (maybe addressble with the subdisplaynumber). In the end, its just up to the imlementation. btw: I don't think there is much need for the (default) unix vnc server (Xvnc) to implement subdisplays and such. However, now I think of it, it can be nice if a kind of Xvnc process can be used to implement the sub-addressing: start it and get display :0.1 (and :0.2, :0.3 and such). jackb On 28 Jul 2003 at 12:53, James Weatherall wrote: Jerry, A multi-monitor aware beta release of VNC will be available sometime this week. I'll be particularly interested in feedback from users who: Cheers, -- Wez @ RealVNC Ltd. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: (no subject)
-Original Message- From: O.D.Iberien [mailto:[EMAIL PROTECTED] Someone please tell me if I am right or wrong about this: There is no right and wrong, it's just if what you want matches what you get by what you do... The heart of my problem is that VNC does not resize in response to changes in geometry. A 24-point letter is going to be the same size on the screen whether or not it is in a 640x400 window or a 1200x600 window. Although the VNC window changes size, the windows within it do not. For instance, only one-quarter of the OpenOffice window shows up within a full-screen VNC window. Without scrollbars, I have to drag the OpenOffice window around inside the VNC window in order to see all of it. If the scaling function actually worked, then it would be fine. But, it doesn't -- it is painfully out of focus. I have a 17 monitor, which is pretty standard, so it seems odd to me that VNC seems to be scaled for use on something much larger For a start, some lines about sizes on vnc: It starts with the vncserver: that has a size once it is started. On M$Windows its the size of the console display, on unix, its the size you give it with -geometry XXXxYYY, the `vncserver` script has some build in default wich you can change with any text editor, numbers at this point can be rounded to a multiple of 4. This is all considdered pixel size, nothing more, nothing less. Then there is the viewer. That just gets the entire picture in its pixel size. By default it matches every vnc-server pixel to a local pixel. If the local display is smaller than the remote, then you should get scrollbars in the vncviewer window. Some vnc-viewers can zoom. That just removes pixels or doubles pixels, depending in what direction you zoom. Some vnc-viewers can go in full-screen mode. I don't know what they do with the desktop geometry since I don't use it. Back to your problem: It is true that a 24 point character is the same size on the viewer display regardless of the vncserver-side geometry: 24 point is mapped to a number of (24?) pixels. If the vncviewer does not zoom in any way, every remote pixel is mapped on a local pixel, hence changing the remote display size does not alter the local picture size. If the viewer does not provide scrollbars if the vncsession does not fit in the desktop window, that is an error/bug (or is it a setting?) Is this something that I can correct? Or is this something I just have to wait on? It would be wonderful if it could open a full-featured desktop window manager properly. Waiting is never a solution, you have to step on the bus to get somewhere. Asking directions here points you to: Check the settings of the viewer, Try to find an other viewer with more options or just work with it. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Multiple vnc instances on a linux machine !
-Original Message- From: Carlito - VNC user - installer [mailto:[EMAIL PROTECTED] I'm running vnc at the moment at it works beautifully , however in my /etc/rc.local file I've put vncserver and it starts up ! I enter the session password and I get my X desktop for root. That should do for static vnc-servers. If you happen to have a RedHat distribution (any version of 7.x or up will do) that have several vnc-packages, including a suitable system to do what you want. It is also documented on the web somewhere. Now how do I retain that functionality but also allow another user ( john ) to also automatically open up his windows vnc viewer proggie and connect to The best way for normal users, is to setup as on http://www.sourcecodecorner.com/articles/vnc/linux.asp. That avoids the need to administer anything beyond distributing the vncviewer to desktops. his X desktop , without via ssh starting up anything manually via a console session ... an ssh connection (or any other vpn connection) should be setup before vnc is started. By default vnc is just a little more secure that telnet since it is compressed. In simple terms how do I run 2 vnc servers 2 times on one machine for different users ? the setup as on the link just needs John to do a `vncviewer remotemachien:52` to get a unix login box at which he can work just as if at the machine itself. Jack can do the same to the same port and gets his own login box and own session. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Linux Upgrade Question
-Original Message- From: Bill Cabral [mailto:[EMAIL PROTECTED] I am currently running a linux server with VNCServer 3.3.3, and I am looking to upgrade to 3.3.7. Im fairly new to the game, so I want to ask a couple of questions before I kill my server! Will the upgrade automatically overwrite the older version of VNC, or do I have to delete/rename the files associated with the older version first? I foresee a scenario where it installs the 2 versions side by side, and doesnt know which vncserver to use when i issue the command. There was a lovely sentence on realvnc.com that referred questions about upgrading XVNC versions to a mysterious README file that I cant seem to find in the documentation or elsewhere. Im always a bit apprehensive when upgrading programs, especially with my modest knowledge of Linux, so I thank you for indulging my paranoia. Any ideas? On unix, (that includes linux) the vnc package(s) more or less contain 2 binaries: `Xvnc` and `vncviewer`. you can savely move the old ones out of the way (rename them, remove them, your choice) and put the new ones in place of the old ones. Then there are a couple of java files, in the ...vnc/classes directory. All other files are readable script files which are stable since years. So if you want to controll the update, to it manually: just update the binaries. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: no video update on wmcap.exe
-Original Message- From: Brendan Bergin [mailto:[EMAIL PROTECTED] Goal is to see high quality video using vnc. Should be no problem on UNIX machines... Server is running vnc 3.3.3 and displaying video on the screen using wmcap.exe. ...naa, don't think it will happen with current implementations on M$Windows platforms. They use polling and hence Client is running realvnc 3.3.7 and does connect, the wmcap.exe window shows but is dark. Tue, every vnc I know on M$Windows just polls the video memory. Most video display apps and definitly the ones using video overlaying or direct-draw or other accelleration (so that'll bee all) do NOT use the vidoe memory. Hence, vnc can never see the video picture. I have changed the windows registry values to 1 for all entries against wmcap.exe - in the server with no success. Using netmeeting to display the video the client does connect and display the video. I think that just degrades teh video and gets the actual picture in the video memory where vnc can poll it out. I have searched the web site for video and wmcap without finding any applicable info. Any help? The current list is setup to reply (by default) to the sender, not to the list. Hence, answers get to the sender and not to the list. Which leaves the list archive with questions but no answers. Those who ask questions should be so kind to send a summary of the answers received and the list should add a message on this in the signature... Challenge to those who want/like/need to see a video trough vnc: write a dedicated vnc-server that just displays the video stream in one of the vnc formats. Formats are described in the vnc documentation. up to a point, you can see both vnc and video as streaming video. To make it easy: it can be a read-only vncserver for a start and I don't ask audio since vnc has no audio. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: DOS and VNC (sounds like a commercial for vmware, sorry for t hat)
Hi Due to the wat MSDos works and the way VNC works, they are verry hard to combine, specially with MSDos in full-screen mode. Recently I'm doing some tests with vmware (http://www.vmware.com/) This is definitly commercial software, definitly no free software. With vmware-workstation, you can have jet an other machine (a vmware-guest) inside your own (linux or M$Windows) workstation. If you can take-over this workstation with vnc, you can access the display of an ms-dos machine. With vmware-gsx server (and even more expensive, esx server) you can have the same vmware-guest even on a remote system with display on your own desktop. For its accessability, comparable with vnc and even have access to the power switch. I'm sorry to point you to commercial software trough the maillist of a free tool but I'd like to share my experience this way. For commercial business, it can be a solution. btw: vmware provides trial licenses to test the stuff for 3 months. CBee -Original Message- From: Brent B. Sloan [mailto:[EMAIL PROTECTED] Sent: vrijdag 27 juni 2003 0:25 To: [EMAIL PROTECTED] Subject: DOS and VNC I sometimes need access to the DOS version of a Point of Sale program I use at my retail business. I don9t seem to be able to view DOS based programs I try to load remotely via VNC. Is there an answer? Thanks in advance. -- Brent B. Sloan Wine Works 133 Saint Paul Street Burlington, Vermont 05401 http://www.wineworks.net P 802.951.9463 F 802.865.9435 ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC over different subnet mask
-Original Message- From: [EMAIL PROTECTED] Hi, We've just run out of IP addresses on our network, so we're moving to a different scope, Should be a totally different scope, not just an other netmask, also an other network. Then the routers can do a lot for you, now you only have to hope your routers can coop with the stuff. If you use a totally different network, then just connect the same router with a second port to the same network. configure this new port as one (the gateway) of the new network and off you go. current IPs are running 192.168.60.1 - 255 the Wild guess: subnet was 255.255.255.0? That makes the next pre-defined (not for host usable) addresses: network: 192.168.60.0 broadcast: 192.168.60.255 The available host range: 192.168.60.1 - 192.168.60.254 prefered hosts (not requred, its just most tools provide this as default values once the address and netmask of the above network is defined): gateway: 192.168.60.254, network services (dns, dhcp etc): 192.168.60.1 new scope is 192.168.61.1 - 255. and subnet mask 255.255.248.0 That makes: network: 192.168.56.0 broadcast: 192.168.63.255 The available host range: 192.168.56.1 - 192.168.63.254 with the prefered hosts on the boundaries as before. It is perfectly acceptable to use other addresses for the gateway and the network services, You see, the network address and the broadcast address of one network are host addresses on the other network. When I try to connect with VNC from my PC (old scope) to a new PC (new scope) it fails. I've changed my subnet mask to 255.255.248.0, but it stills fails. Is there anyway around it? As long as a machine thinks it is on the old network, all addresses outside this network are forwarded to the defined gateway. No problem from this host. If the gateway is already configured for the new network, bad luck, it just ignores the call since the message is already on the proper network, no need to `gateway` the message. If the gateway is still configured for the old network, it depends on the routing tables. If the routing tables are still in the old network state, bad luck, your message goes out to the other networks, but not back to the network with the double configuration. Only if the gateway has its network-connection configured for the old network and has updated routing tables to route messages to the new network (but not in the old network) back to the old network, then you might get a connection. Hence, best to do a big-bang update of all machines: proper operating systems can do that on the fly. Or if you want to do it silently, do it to an other network addres, not one that includes the old network. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC over different subnet mask
-Original Message- From: Beerse, Corni [mailto:[EMAIL PROTECTED] Sent: vrijdag 20 juni 2003 14:22 To: '[EMAIL PROTECTED]'; [EMAIL PROTECTED] Subject: RE: VNC over different subnet mask -Original Message- From: [EMAIL PROTECTED] Hi, We've just run out of IP addresses on our network, so we're moving to a different scope, Should be a totally different scope, not just an other netmask, also an other network. Then the routers can do a lot for you, now you only have to hope your routers can coop with the stuff. If you use a totally different network, then just connect the same router with a second port to the same network. configure this new port as one (the gateway) of the new network and off you go. BTW: With this other network, I indicated an other IP-Network address, no new hardware needed!!! THe IP-Network address is that part of the IP address of any machine in the network where the netmask is (binary) 1. The IP-machine address is that part of the IP address of the machine in the network where the netmask is (binary) 0. So to complete the example: use for example network 192.168.64.0/21 netmask 255.255.248.0 range 192.168.64.1 - 192.168.71.254 broadcast: 192.168.71.255 network: 192.168.64.0 current IPs are running 192.168.60.1 - 255 the Wild guess: subnet was 255.255.255.0? That makes the next pre-defined (not for host usable) addresses: network: 192.168.60.0 broadcast: 192.168.60.255 The available host range: 192.168.60.1 - 192.168.60.254 prefered hosts (not requred, its just most tools provide this as default values once the address and netmask of the above network is defined): gateway: 192.168.60.254, network services (dns, dhcp etc): 192.168.60.1 new scope is 192.168.61.1 - 255. and subnet mask 255.255.248.0 That makes: network: 192.168.56.0 broadcast: 192.168.63.255 The available host range: 192.168.56.1 - 192.168.63.254 with the prefered hosts on the boundaries as before. It is perfectly acceptable to use other addresses for the gateway and the network services, You see, the network address and the broadcast address of one network are host addresses on the other network. When I try to connect with VNC from my PC (old scope) to a new PC (new scope) it fails. I've changed my subnet mask to 255.255.248.0, but it stills fails. Is there anyway around it? As long as a machine thinks it is on the old network, all addresses outside this network are forwarded to the defined gateway. No problem from this host. If the gateway is already configured for the new network, bad luck, it just ignores the call since the message is already on the proper network, no need to `gateway` the message. If the gateway is still configured for the old network, it depends on the routing tables. If the routing tables are still in the old network state, bad luck, your message goes out to the other networks, but not back to the network with the double configuration. Only if the gateway has its network-connection configured for the old network and has updated routing tables to route messages to the new network (but not in the old network) back to the old network, then you might get a connection. Hence, best to do a big-bang update of all machines: proper operating systems can do that on the fly. Or if you want to do it silently, do it to an other network addres, not one that includes the old network. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC over different subnet mask
-Original Message- From: William Hooper [mailto:[EMAIL PROTECTED] Sent: vrijdag 20 juni 2003 14:48 To: [EMAIL PROTECTED] Subject: RE: VNC over different subnet mask Beerse, Corni said: -Original Message- From: [EMAIL PROTECTED] [snip] When I try to connect with VNC from my PC (old scope) to a new PC (new scope) it fails. I've changed my subnet mask to 255.255.248.0, but it stills fails. Is there anyway around it? As long as a machine thinks it is on the old network, all addresses outside this network are forwarded to the defined gateway. [snip] Only if the gateway has its network-connection configured for the old network and has updated routing tables to route messages to the new network (but not in the old network) back to the old network, then you might get a connection. Nope. Even if the gateway knows that it is the same wire, the new machine doesn't think it needs to use the gateway. The purpose of subnet masking is to avoid using the gateway. You're right, the way back (from new to old) also has some problems: the old machine to receive the message might not pick it up since it comes from an 'other' network... Hence, best to do a big-bang update of all machines: proper operating systems can do that on the fly.[snip] Agreed. There is still the question of why it doesn't work after changing the subnet mask to be the same. It is really a TCP/IP problem, not a VNC one. Waiting on the results of the ping as suggested by Dave Warren. Waiting can do a lot here, the mac-adress-tables in all machines (mostly routers) must be updated that the mac address has moved to a new ip-network. This most times goes automatic, specially if the changed machine has send some stuff over the network, like some pings to some machines in old and new network. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Intermittent problem on Solaris x86
-Original Message- From: Joel E. Lieberman, Ph.D. [mailto:[EMAIL PROTECTED] Yes, please provide any script details that you can. I think I have discovered something else that may be relevant. As long as I don't logout of the Unix session where vncserver was invoked, I can come back with the viewer (on an external box) and see the CDE desktop repeatedly. Once I logout of the invoking session, however, the grey screen appears. The Xvnc process is still running (I can connect with viewer) but the desktop disappears. I don't understand X enough to know what this means, but I bet it is significant. If this is the case then I think tooltalk is in the way. It's a problem with many display-managers, the ones that in the end start the window manager and accompanying tools). ON cde, tooltalk is used. Both gnome and kde have a similar construction. One of the things they do is avoid a double startup in a single login session. You most likely started vncserver from within a graphical login session and like to start an other one. The best thing is to somehow fake or arange an other login to start the new display manager session in the vncserver session. Some sulutions include: `rsh localhost vncserver` This starts a vncserver from a fresh login. Nice part: it can be invoked from an other machine or such. Alternates include rlogin, rexec, telnet and such. Run vncserver from an `at`, `batch` or `cron` job. Nice thing here: once the vncsesion gets killed, you only have to wait for an other session to start. This is not my prefered way but it gets things going. The best way, is as on http://www.sourcecodecorner.com/articles/vnc/linux.asp. This is the intended (perfect?) way to use the -once (here -inetd wich includes the same behavoure) and -query localhost as opposed before. Disadvantage here: no static sessions. However, I see this as an advantage: no stale sessions CBee Joel -Original Message- From: Steve Palocz [mailto:[EMAIL PROTECTED] Sent: Wednesday, June 18, 2003 3:54 PM To: 'Joel E. Lieberman, Ph.D.'; '[EMAIL PROTECTED] Com' Subject: RE: Intermittent problem on Solaris x86 I was having this problem also. That is when I started looking at invoking Xvnc directly with the options (instead of letting the perl wrapper script handle it) (this was originally to turn up debuggin to find out what was going on, but still couldn't identify). I found using the -query localhost, you get the dtlogin and the cde desktop, just like on the console. I also use the -once option to kill vnc when I click exit on the dtpanel. Then loop the script to start a fresh session. If you would like the command line I use, let me know. Steve -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joel E. Lieberman, Ph.D. Sent: Wednesday, June 18, 2003 2:08 PM To: [EMAIL PROTECTED] Com Subject: Intermittent problem on Solaris x86 Hi Folks - I am having an intermittent problem with VNC Server on Solaris x86. I run the vncserver to start (Xvnc). I have appropriate entries in ../.vnc/xstartup to invoke the CDE windows manager. The problem is that about 80% of the time, The remote vncviewer will connect to the server and the correct desktop will be displayed, however, at other times, the grey screen will be displayed instead of the CDE desktop. Also, sometimes the first couple of viewer connections will show correct the desktop, and then after exiting the viewer, the next viewer connection comes up with the grey screen. As I said, this is intermittent. If I go and kill the :1 VNC server and restart it, everything will be fine until the next unexpected grey screen. I have not had this problem before with Solaris SPARC or Linux. Does anybody have any ideas why this intermittent behavior happens, and what to do to fix it? I have searched the archives for grey screen postings and they generally fall into the category of 'all I get is a grey screen...'. My problem seems to be different in that it is randomly intermittent. Thanks - Joel Lieberman ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Licensing issues with Microsoft.
-Original Message- From: Nazim Khan [mailto:[EMAIL PROTECTED] Hi, Is there any problem in using VNC on Microsoft OSs i.e Win95/Win2K/NT/XP. Any link or info about the same will be useful for me in making the decision about using the VNC. From vnc point of view, there is no license problem at all. As far as I know, vnc is free as in free-speach (and maybe even as in free-beer?) From M$ point of view, it has been discussed before. What I recall from it is that if you follow the license to every character, then you need to have a license for running the os you have at the server side also on the client side (if you use it or not). If you just follow the spirit of the license, then I'd say you just have an other kvm-switch. (btw: M$ want you to use their tools, not vnc and it does everything to nail you to it.) CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Licensing issues with Microsoft.
-Original Message- From: Nazim Khan [mailto:[EMAIL PROTECTED] Sent: dinsdag 17 juni 2003 12:49 I came across the following link, they say something like this. So I just wanted to verify it. http://pcbuyersguide.com/solutions/networks/VNC.html Check the Blue column on the right hand side. If I carefully read it and see my mouse and keyboard as being separate devices, just hooked up to the workstation, they even may not be used except if they are permitted by the Then, on the end, it says: ... unles the Device has a separate license for the Product. That indicates that vnc can freely be used between XP-vncserver and XP-vncviewer. And now I wonder how to get a WXP license for my keyboard, mouse and monitor. If you say that they don't run software, how about the tools for the disabled? like braille-tablets and such? How about the presentation tools like beamers with their own i/o devices? How about shares and such opened at the WXP machine? If you use them over the network then services are started like for printers and such. On the other hand, (try to find holes in the lines): It says on the Workstation Computer . I regard the machine running a vncserver as being a server, not a workstation. What if you just use vnc to controll the software (keep it running), not to execute (start) it? I think if you are using it outside the US, your are quite save. The use of VNC on windows is to avoid a (long) walk to the machine, hence the usage of the machine can still be considdered as a PERSONAL computer. And I think that's the spirit of the license. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Multiple displays with VNC for Windows
-Original Message- From: Ross Presser [mailto:[EMAIL PROTECTED] Scott Huber [EMAIL PROTECTED] wrote in news:[EMAIL PROTECTED]: First off, let me say that I am a complete VNC newbie. We use it in a Windows-only environment to remotely administer pc's at our various sites around town. And even at that, we only use the default VNCViewer settings. Just the other day I realized there is a web-interface to VNC. On to my question... Upon perusing the main VNC website and finding this list, I've seen information regarding the ability to access multiple displays, but it all seems to be related to xNIX boxes. I have several pc's that have two and even three displays with certain applications set to open on respective displays (i.e. Internet Explorer opens on the third display). But with the standard VNC settings, I can only access the primary display. How can I access the other displays? When you refer to pc's with two and even three displays I'm guessing that you mean multiple monitors. These are not the same as multiple displays in the unix sense. A display in the unix sense refers to the desktop canvas that windows are drawn on, and to the keyboard and mouse inputs that the display accepts. Usually there is a separate display for each user working concurrently on a multiuser unix machine. Well, actually there is something like multiple display and multiple monitor on unix. If you carefully look to the $DISPLAY setting in X11, you see something like localhost:0.0 or vncserver:1.0. If you translate this to (pc-style) hardware, then it is somethign like this: The first number is for the X11-server, a combination of 1 keyboard, 1 mouse and 1 or more display-adapters. The second number is to address the 1 or more display-adapters. If you have a display-adapter with multiple monitors, it is either configured as 2 (virtual) display-adapters, or configured as a single large screen spread over the monitors. In the above, I use the next terms: $DISPLAYthe address for the windows. display-adapter the hardware in the (isa/pci/...) slot. monitor the screen you look at. In this sense, WinVNC does not support more than one display per host. WinVNC does not support more than one $DISPLAY setting per host since there can run only one WinVNC server per host. If you have multiple monitors connected to one display-adapter resulting in a system where you can have a single window spread over both (all?) monitors, I think vnc only sees a single-large display and forwards that, since it just sees the entire screen. This is kind of like a laptop/lcd-monitor with a panning display (large screen with smaller viewport or such) where you cannot see the entire display at the monitor. VNC just forwards the entire display, not what just happens to be viewable in the monitor. If you have multiple monitors connnected to multiple (virtual) display-adapters resulting in a system whre you can move the mouse and windows from one monitor to an other but not have a single window spread over multiple monitors, I'm about sure vnc only forwards the first part (primary monitor) since it does not see the other ones (as it does not look for it). Perhaps your next question, then, will be How can I get VNC to display windows on other than the primary monitor? I do think that it is possible, though it is frequently asked. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: How to get Login Screen (like in Windows) ?
-Original Message- From: ashwani.dave [mailto:[EMAIL PROTECTED] I have installed Linux : RedHat Advanced Server 2.1 Sessions : KDE/GNome Installed : VNC Server and able to access from XP-Desktop (through TCP and HTTP) Looks nice. I hope you used the RedHat rpms (from the distro). My query relates to : How to get Login Screen (like in Windows) ? http://www.sourcecodecorner.com/articles/vnc/linux.asp After Logon, How to get GUI Desktop (like in Windows) ? http://www.sourcecodecorner.com/articles/vnc/linux.asp How to grant access to other users i.e. root, xyz (users for admin purpose) ? don't... This is a unix feature, not to be answered from a vnc perspective. On RedHat (and other linux unix)) you should never login with root, always as a normal user. Give every user his/her own account. Then, there are several ways to grant users access. Including 'sticky-bit', 's-bin', `su`, `super`, `sudo`. How to automate 'vncserver' at boot time and make down at shutdown ? vncserver package on RedHat does something like this. the setup as on http://www.sourcecodecorner.com/articles/vnc/linux.asp just starts a vncserver on connect and removes it on disconnect. How to restrict vnc users with different level permissions (like in Windows) ? Not use something like windows, it has a horrible security administration. Start giving every user his/her own account. Then see tools like `su`, `super`, `sudo`. There are others too. Only superior sys-admins should have the root password. Regards Ashwani Dave Get Your Private, Free E-mail from Indiatimes at http://email.indiatimes.com Buy The Best In BOOKS at http://www.bestsellers.indiatimes.com Bid for Air Tickets @ Re.1 on Air Sahara Flights. Just log on to http://airsahara.indiatimes.com and Bid Now ! ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Sound Issues with VNC
-Original Message- From: Matt Tharma [mailto:[EMAIL PROTECTED] Hey Guys, I have couple of questions regarding VNC client/server setup. 1) What is the easiest way to play wav a files across a Vnc server - client config? not using vnc. See if there is a streaming audio format between your server and viewer os and use that. 2) if #1 is not possible, how could I generate a continues beep sound on the client side (this beep must be initiated from the server side application? beep is the only sound that appears to be working somethimes. It must be said, it is only if it is beep, not if it is changed to any other phony sound. Then, a repeated beep is not the intention of the beep. In fact, the beep is actually a character (ascii value 8, 0x8, 010). THat is in display on a terminal. As long as it it visible at that terminal, it is displayed. Since it takes no space, there can be bilions on a single line. So if you use a continues beep, best to send a cr once in a while to the same termial to flush lines. 3) I got the bell command (in Tcl/Tk) to work with the above (#2) config, but had no luck playing a beep in a continuous mannor with VNC Server - client setup. I think we discussed some of this before. The cr trick is something that just came up. give it a try. 4) Is all the VNC Servers are same? (because there is an ATT VNC Version, there is TightVNC RealVNC? Well the protocol is. I think if there are a couple of honderd bell-s on aline, the character-lookup and display can take a while. Please help me find an answer for the above questions. Is there a reason for the continues bell? It might be better to attach a sirene to the machine ;-) CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: lightweight WM for use with Xvnc?
-Original Message- From: Mike Miller [mailto:[EMAIL PROTECTED] I'm planning on having a bunch of people use VNCviewer to connect to our Linux server once we get the server and Xvnc running. It is important with VNC to have minimal complexity in background images so that it won't be slowed down by having to update a very complex background. So we really prefer a solid color background. Also, because of the large number of users, we'd prefer something that won't use too much RAM. Finally, because our users are not very sophisticated, a nice clickable interface for launching programs would be nice (e.g., like what KDE offers). So, which WM will do it all for us? We need: (1) plain backgrounds (maybe all WMs can handle this requirement) (2) low memory usage (3) clickable toolbar for launching programs Setup as on http://www.sourcecodecorner.com/articles/vnc/linux.asp . THen install vncviewer on the desktops. Either save the connection or create a shortcut to vncviewer linuxbox:52 Best to restrict users to low colordepts and not to huge display sizes. I don't know how to disable the background (I don't know if `Xvnc` has an option to do so). Also disable screensavers if you can. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Help needed in running vncviewer with a very thin X Server.
-Original Message- From: Nazim Khan [mailto:[EMAIL PROTECTED] Hi, I am just trying to use my very old linux based PC, x486, as a display/control unit for servers which are running WinNT/Linux. Should be possible, provided it has sufficient memory (say 32 MB or more) Is it possible to run vncviewer with a very thin X Server. I liked the idea about Xvnc which includes 'X Server + VNC Server'. Is it possible to have something of similar sort for X Server + vncviewer where X Server just has the capabilities to display Graphical Desktop imported from the VNC Server. I don't know details on this but I can tell you a vncviewer process does not need any window manager, it can do with any X11 server. To be on the save side, the colordepth should match (be the same or vnc less than the Xserver). If possible, What could be the basic hardware requirements for running X Server, minimum RAM + Processor speed to have a kind of good display feel. I don't want to run Windows Manager. Just get yourself the Xserer that suits your hardware. At the time XFree86 R3 was hot and new, most you need was enough video memory. On a 1 MByte video board, you can choose between colordepth and size: on 8 bit colors (256 colors) you can do 1024 * 768. If you can doo with 16 bit colors, 800*600 should be possible. If you need more colors, you can do only 480*640. (that's for the standardized geometries, others can do as long as (hight * width * colordept) stays within the video memory. vncviewer runs happy inside a Xserver, provided it fits in the colordepth and the geometry. If you don't use a window manager, you don't get a window border so you don't need to count for that ;-) Any help would be appreciated. From here, it is up to you: just trial-and-error. btw: Xvnc is just one of those small Xservers, if you use that one to run vncviewer in, you can take that over once again... CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Problem with -alwaysshared server option
-Original Message- From: Joel E. Lieberman, Ph.D. [mailto:[EMAIL PROTECTED] I am still not having any success with getting the VNC Server to run in the alwaysshared mode on Linux. I start the server with the command: vncserver -alwaysshared . The server starts and runs fine - except it is not enforcing the shared mode for client connections. You might need to add -donnotdisconnect (check `Xvnc --help` for acurate option name) Can someone please tell me what I am doing wrong and post a specific command line syntax for starting the server in the alwaysshared mode? How always shared do you want it to be? Share and get double view or share and kick the other off? My experience (with 3.3.3 hence a long time ago) For share and double view, all must be in share mode: the server and all viewers. If the server is NOT in -donnotdisconnect mode, then as soon as a not-shared viewer connects, it disconnects all other viewers If the server is in -donnotdisconnect mode, then as soon as a not-shared viewer connects, it cannot connect sicne it cannot get a not-shared connection. btw: -inetd overrules all shared options. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Problem with -alwaysshared server option
My reply was based on my old experience, If the documentation says something else, then it shoud be like that. If not, it's a bug (in the documentation or in the tool...) Hence report it as such. CBee -Original Message- From: Joel E. Lieberman, Ph.D. [mailto:[EMAIL PROTECTED] Sent: woensdag 28 mei 2003 17:11 To: [EMAIL PROTECTED] Com; Beerse, Corni Subject: RE: Problem with -alwaysshared server option CBee - Thanks for your latest reply. I don't want to be a pain, but your explanation seems to partially contradict the VNC documentation. Here is an excerpt from the docs: * -alwaysshared Always treat new clients as shared (i.e. ignore client's shared flag). -nevershared Never treat new clients as shared (i.e. ignore client's shared flag). -dontdisconnect Don't disconnect existing clients when a new non-shared connection comes in. Instead the new connection is refused. New shared connections are still allowed in the normal way. * The reason I am trying to use the -alwaysshared option is so that all users will be treated as shared and their client settings will be ignored (overridden) by the server. I am trying to make it easy for clients to connect and share without burdening the users with having to define additional options for their viewers. Unless I am reading this wrong, the -alwaysshared option should do just that and force a shared connection for any number of clients that connect to the server. Also, based on the above excerpts, it should not be necessary to use any additional options beyond the -alwaysshared. Do you know anyone who has got this stuff to work as indicated in the docs? I'm not getting very far with it. Thanks again - Joel -Original Message- From: Beerse, Corni [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 28, 2003 10:44 AM To: 'Joel E. Lieberman, Ph.D.'; [EMAIL PROTECTED] Com Subject: RE: Problem with -alwaysshared server option -Original Message- From: Joel E. Lieberman, Ph.D. [ mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] ] I am still not having any success with getting the VNC Server to run in the alwaysshared mode on Linux. I start the server with the command: vncserver -alwaysshared . The server starts and runs fine - except it is not enforcing the shared mode for client connections. You might need to add -donnotdisconnect (check `Xvnc --help` for acurate option name) Can someone please tell me what I am doing wrong and post a specific command line syntax for starting the server in the alwaysshared mode? How always shared do you want it to be? Share and get double view or share and kick the other off? My experience (with 3.3.3 hence a long time ago) For share and double view, all must be in share mode: the server and all viewers. If the server is NOT in -donnotdisconnect mode, then as soon as a not-shared viewer connects, it disconnects all other viewers If the server is in -donnotdisconnect mode, then as soon as a not-shared viewer connects, it cannot connect sicne it cannot get a not-shared connection. btw: -inetd overrules all shared options. CBee ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Xvnc for Sco 5
Hi, I'm looking for a Xvnc binary for Sco 5. In the maillist archive I see someone has build it somewhere. I don't care what version or variant it is, as long as it runs on Sco 5 (on intel). I don't like to build it myself (I don't have any compiler on the sco box). Can someone either send me a link to a binary or the binary itself? Thanks. -- C. Beerse mailto:[EMAIL PROTECTED] talkto:+31(71)5256660 ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Need file transfer facility in VNC
-Original Message- From: Chris Lotter [mailto:[EMAIL PROTECTED] Hi everyone, can someone tell me if they know of a working VNC package (for Windows 9x and Windows XP) that contains file transfer capabilities. If it's between M$Windows machines, best use file-sharing. Keep in mind: the file-sharing option in M$Windows has no remote-desktop features, just as vnc has no remote-file features. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC AVI files
-Original Message- From: Giovanni.DeLuca su Libero [mailto:[EMAIL PROTECTED] When in PC with VNCServer (for win) is running an AVI player, in remote PC running VNCViewer (for win) and linked at the first, AVI animation is not visible. Why? Most likely, you use some kind of acceleration. That bypasses the videomemory. To see something of the video, turn off all (hardware-) acceleration. Detail: the video is updated at a faster rate than the window is polled for vnc so the picture will be a lot more flickery than on the console. Visita il nuovo sito www.intrage.it ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: vnc java viewer port change?
-Original Message- From: Tammo Filusch [mailto:[EMAIL PROTECTED] Is it possible to tell the java viewer that it should connected to a port that differs from the standart port? Yes. If you start the vncserver at a different display, the rfb communicaiton defaults to 5900+display, the html/java is served at 5800+display and is properly configured to use the rfb communication. The unix vnc server has options to overrule these defaults. See `Xvnc -help` for details. I think (but don't know sure) the vncserver on M$Windows has options too. Try to start the server from the commandprompt with a phony/fake option, it might list the proper options. For both unix and M$Windows, you can use your own webserve to serve the java viewer: Get a unix distribution. Extract the .../classes/* directory and its contents (use winzip on *.tgz distribution). upload the java files (*.classes, *.jar) to the webserver Rename *.vnc files to *.html files Update the *.html files: fill out all the vnc-variables be sure to use the proper port numbers and other options be sure to be able to fetch the proper *.classes and *.jar files upload the new *.html files to the webserver fetch a *.html file with your browser and off you go. Success CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: how can i use the root passwd as the vnc default passwd
-Original Message- From: wushanyi [mailto:[EMAIL PROTECTED] i use realvnc 3.3.7 in RH8 i need the default connect password is the root passwd how can i realization this when i first start vnc??? There is no default. If you need an update: Use `vncpasswd`, it will update the password file in ~/.vnc/. (This might even work on-the-fly ;-) You can also just remove the passwordfile and restart `vncviewer. Both ways will ask you for a new password. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: How many connections?
-Original Message- From: [EMAIL PROTECTED] Thank you. The answer I was after was to the second question - running many viewers on one host. What I need to do is monitor many PCs from one controller PC. Ideally I would like to be able to view about 10 at once, not just connected and minimized. So this would be 10 simultaneous updating display windows. Does this sound possible? I guess I'll have to try it and see. You are true, try and see how many you can handle. Top answer here: vnc will not restrict you, its other resources that restrict you. If it is for monitoring, have a look at the tumbnail idea from an other message. Then you can see something changing and by a click open the entire view (that's my idea on it) If you have the remote systems on a small geometry (640x480 or 800x600) and a huge desktop (1280x1024 or more) then you can just create your own mosaic of displays. I bet vnc can handle as many connection as pcanywhere or other variants can. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Multiple machine management console?
-Original Message- From: Shaun Hedges [mailto:[EMAIL PROTECTED] Hi, As many of you probably use VNC to control a number of computers, or just maintain the ability to connect to these machines on demand, it might be time consuming to have to always type the name in, then the password to the machine. If you don't read the documentation, you cannot find the easy way. On unix desktops, it is easy to create aliasses and such. On M$Windows platforms: save the connection info to a *.vnc file and click that to reconnect. Has anyone made or is making a management interface, where maybe you have a list of machines you can just click the name and connect automatically, or small thumbnail views of all the machines, and then when you want to connect to one you just click it and it maximizes? Or any other tools that can be recommened to help manage loads of machines? It has been reported such a tool is in development. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: How many connections?
-Original Message- From: [EMAIL PROTECTED] I searched through the docs and archive but couldn't find the answer. How many viewer sessions can run at the same time on one PC, each one connecting to a different server? You will never find the answer since there is no answer. vnc allows all you can get. In the end, it can slow down a bit but that does not stop vnc from working. The number of viewers (both M$Windows or unix based) (and/or unix based vnc-servers) on a system is (a.o.) limited by: Used operating system Used hardware architecture Running other applications Activiti of other processes processor speed available memory available network bandwidth available ports compression settings polling frequency (for M$Windows servers only) display activity (for unix/X11 servers only) geometry of vnc-server colordepth of vnc-server For viewers only: the max mumber of viewers is also restricted by: geometry of local display colordepth of local display local video hardware In general, I'd say the workable number of viewers on a display is about 4 open vncviewer windows. Closed viewer windows only occupy memory, the update of those sessions is stopped so they don't consume cpu power or network bandwidth. For M$Windows based vnc-servers, the number of servers is restricted to 1 (one) for the default server on default os-installation. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Session Management, et. al.
-Original Message- From: Bjvrn Persson [mailto:[EMAIL PROTECTED] Avery Payne wrote: The retain session feature you desire should be possible by removing the -once flag from the inetd setup. When -inetd is given, XVNC dies when the connection closes. It never listens for other connections, and if it did you'd have to check which port it got and remember to connect to that port next time. People would keep forgetting this and filling the system with zombie sessions. It is even worse: For the port in use; `Xvnc -inetd` does not use any port, it uses stdio (stdin and stdout) for communication. Its inetd that hooks this to a port and it is inetd that controls the communication. inetd will (at least by default) start new Xvnc processes to handle new calls to the same port. For the ending of Xvnc, its inetd that starts Xvnc as soon as a connection is made and it kills Xvnc as soon as the connection is lost. Hence, the current `Xvnc -inetd` has no control on the port and no controll on its live. To pass the port-controll issue, I'd say Xvnc might be extended to be able to open aditional communication on an other port. Either on the fly or from the commandline. To pass the live-contoll issue, I'd say Xvnc should be able to dispatch itself once necessary. It sounds hard to do but on unix, it is just a `fork` with proper options. Either do it 'just in time' or do it as 'soon as necessary'. Both have their pro's and con's: 'just in time' must be catched, 'as soon as necessary' must keep the session shared. For 'on the fly', the settings (for both above ideas) can include all options like -shared and -once and in the end maybe even the -geometry or -depth. It would be nice if those settings can be made with the $DISPLAY address, like working with Xresources (`xrdb`) or xsettings (`xset`). For a start, it can be nice if `xrdb -query` or `xset -q` list the current settings of Xvnc. I think xrdb is the most easy to extend. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC 3.3.7 RH8 install
If you are new to (one of) RedHat or VNC, best start with the vnc packages distributed with RedHat. Just install them as any other package, you can also select them while installing RedHat. Once you have that up and running, you can considder an upgrade if neccessary. CBee -- C. Beerse mailto:[EMAIL PROTECTED] talkto:+31(71)5256660 -Original Message- From: Mike Taggart [mailto:[EMAIL PROTECTED] Sent: dinsdag 25 maart 2003 00:18 To: [EMAIL PROTECTED] Subject: VNC 3.3.7 RH8 install Hello, I'm pretty new to RH/Linux and am having a problem installing the VNC rpm package - quite honestly, I have no idea how to install it - and I cannot find any directions off of RealVNC's website ... Can anyone please help this newbie? Thanks, Mike ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Wish: resizing a VNC desktop.
-Original Message- From: Bjvrn Persson [mailto:[EMAIL PROTECTED] I wish I could let the VNC viewer tell the server how big the desktop should be. Imagine being able to resize the remote desktop just by dragging the edges of the viewer window! I suppose Windows would only allow certain standard sizes, but what about Unix? Does the X architecture allow changing the size of a desktop at all? For a start, it sounds nice but I don't think there are many applications that can handle this resize properly. Also, at start some memory is allocated and initialized based on the display size. It is hard to re-allocate and (even worse) re-initialize this on the fly. You can compare this with re-sizing a harddisk partition: Yes, you can do it, but you cannot do it on the fly, at best in a read-only state. Then, it takes some time to re-initialize. If you have a linux box with XFree86 X11server (the default on most distributions) it can be configured with multiple sizes. You can walk trough them with ctrlaltnum + and ctrlaltnum - (that are the + and - buttons at the far right of the keyboard). Now you can see if and how applciations (and the display manager) handels this on-the-fly-resize. Then, there are various ways to handle a resize in display: Actually resize: the hight and width of the screen that can be used by applications actually varies. Change viewport: the current implementation of a resize: you just see less of the total screen, as if you view trough some mask or such. Scale the window: The (still experimental) zoom option of most viewers. btw: the unix Xvnc can handle virtualy all sizes. I recal the size might be extended to have nice buffer sizes, like it must an even number or a multiple of 8 or such. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: vncpasswd
-Original Message- From: roland [mailto:[EMAIL PROTECTED] can someone tell my, why vnc has introduced an extra password for vnc authentication ? I wonder why I must set it separately - why cant`t Xvnc authenticate my session password via standard kernel routines aganinst my user-account (/etc/shadow...) ? With setup as on http://www.sourcecodecorner.com/articles/vnc/linux.asp, the vnc-password is obsoleted (and removed) and the unix password is used. Is it, because password hashing is done on the client side and there is no way for Xvnc to crypt/md5 that password for comparison against the shadow-password? since there is modification for windows vnc server to authenticate against NT Domain I wonder if there is a similar feature in Xvnc (auth. against unix password) ? It should be verry easy to implement since the vnc security is based on the unix security. I think it is just a change of parameter (fetch the password from the system, not from ~/.vnc/vncpassword) and off you go. WARNING: if used over public networks, you have your password flying around with a not so good encryptoin... CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: vncpassword - vncviewer
-Original Message- From: roland [mailto:[EMAIL PROTECTED] hello, is there a way to supply the password to the vncviewer without typing it manually into the dialog box and without creating a password file ? I would like a commandline option. See documentation. For unix viewer: put the (encrypted) password in a file and point the viewer to that file (the ~/.vnc/vncpasswd file for unixbased servers, or from the registry of windows-based servers) For windows based viewer: save the connection information and include the password with it (this is asked for). CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: session management in vnc like in citrix or sunray ?
-Original Message- From: roland [mailto:[EMAIL PROTECTED] i`m using a setup of xvnc under inetd and kdm control, so each user can connect an get`s his own desktop. noone has to fiddle around with dedicated port-numbers, which he has to connect to. this makes the linux terminal server alterative become somewhat realitiy, but unfortunaly, we loose the preserve session state-feature of vnc here, because each time the user closes vncviewer, the serving xvnc process dies. see very good docs at: http://www.sourcecodecorner.com/articles/vnc/linux.asp I wonder, if there is anybody around, thinking of implementing a layer of session management into vnc, that users can reconnect to (one of) his previously established and disconnected session(s). This would make the roaming desktop possible - without the need, to assign dedicated port numbers to users and pre-spawning xnvc processes for ALL of them. It could be done by adding a dispatcher in front (or inside?) xvnc which is able to manage sessions previously established. sure, some sort of authentication needs to be done at this level, because the only reasonable way to re-establish sessions and to route it to the appropriate client, is to get known, WHO is reconnecting. Come to think of it, I have the next idea, that even has more solutions: Somehow give Xvnc a call to start talking RFB on an other port. It can have the same options as the default like 'readonly' or 'once' and even an own pointer to an (other) password file. This adds the posibility to have one session that gives both read/write access (for the user) and readonly access (for viewers). Or even provide dedicated access. For the inetd way to start vnc, it adds the posibility of multiple viewers. It does NOT give a way to have a persistent session since inetd somehow will kill the session once the initial communication path is stopped. But as long as the initial viewer stays on, the session is somehow re-entrant. I administer citrix servers, which have this feature - when the user reconnects he is routed to his old session. if he has more than one disconnected session, he can choose, which he wants to re-establish. I also have some experience with sunray terminals - which have this feature in 2 flavours. The user is able to re-establish a disconnected session by entering login/password OR by using a smartcard (whereas the sunray x-server process[==xvnc] is bound to a smartcard - so the user inserts his smartcard at any terminal and gets back his personal desktop) are there any solutions around or is there any work in progress, implementing this with vnc ? i`m really shure this IS possible with reasonable effort. (unfurtunately i`m awful bad programmer, otherwise i would do that myself :) In the end, it's inetd that ruins your day. I think you only have to write a deamon that starts Xvnc just like inetd does but then, keep the session alive and have some administration to see if the session is running or not. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Wish: Version Query
-Original Message- From: Steve Bostedor [mailto:[EMAIL PROTECTED] Ya know, it'd be cool if there was a way to connect to the VNC port on a computer, issue a command, and get back the flavor and version that is running on that computer. If anybody feels like adding new features to VNC, this would be awesome! To get an idea of the OS running at the remote machine, there is the snmp protocol. Just query ...system.sysDescr.0 and you get (on unix/linux) the results of `uname -a`. On the other hand, most systems like to hide their identification to avoid exploiting of known leaks of the system. There are even systems that spoof being an other system for that purpose. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Certain applications not running with VNC and Gnome on Linux
-Original Message- From: Mark Ganser [mailto:[EMAIL PROTECTED] I am looking for a solution for schools wishing to use their existing snip snip exercises. To demonstrate this I have set up the two servers with VNC following the instructions for multiple connections posted by Jeff Vincent http://www.sourcecodecorner.com/articles/vnc/linux.asp . I have created user accounts for each student on the servers, each student gets their own session and everything works great, except: on the RedHat 7.3 machine certain applications will not launch from a VNC session (including root) but will when the user logs on locally. For example the Printer snip snip several things can go wrong here: With the change of user, the $DISPLAY must be transfered too. This sometimes goes right, most times goes wrong. Most apps default to :0.0 hence you will not notice at the local console. you can avoid this by `su -` (or `su - user`) and at the prompt verify (and update0 the setting of $DISPLAY. Then, the new user might not have rights at the used display. You can manipulate that with `xhost`, see `man xhost` for details. `xhost +` will remove all security to avoid this problem at all. btw: root cannot use its power privileges at this level, there is no super-user defined inside X11. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
for Unix too ???...RE: x Virtual Network Control for Win NT 2K XP
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: maandag 17 maart 2003 16:58 To: [EMAIL PROTECTED] Subject: x Virtual Network Control for Win NT 2K XP I just ran across this program x Virtual Network Control http://sourceforge.net/projects/xvnc and it seems like it's pretty cool for quick access to a computer on an NT Domain. Funny, xvnc is available for unix as long as there is a vncserver for unix: The core of the vncserver is called Xvnc (mind the capital X, which comes from X11). So to avoid complications, please rename, as it comes in handy if it comes available on Unix. It simply installs VNC on a remote computer, connects to that computer, then when you disconnect, it removes the VNC program, it appears to only take a matter of seconds for it to install/uninstall. It lacks the ability to control what domain or an IP range, and doesn't have a lot of options, but I thought it might be useful to some. With that functionallity, I'd go for Hvnc where H is for Helpdesk (and for Hacking). Now I think of it, it must be easy to create a polling tool that mimics the winvnc-server style: just polling the Xdisplay at the console. It can use the same entries as used in tools that grab the display or grab a window. This grabbing can be done remote, using the X11 protcol. Now I think of it, this can be a nice tool that puts a single window in a vnc-session. Regards, Beau ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: What is Xvnc?
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] ... Don't know if this is realy you... Sent: woensdag 12 maart 2003 21:52 I'm quite a Linux Newbie, so forgive me my question: But what is Xvnc The webpages is saying this: Xvnc is a VNC (Virtual Network Computing) server. It acts like an X server with a virtual display So is it an X-Server? If Yes, why do I need to install Yes, Xvnc is an X11-server. Be it, a basic one without much extentions. Xfree86 to run it? Not for runtime. However, to actualy use it, you need apps that use X11. They most times need stuff like libraries and so. For linux, they come with the XFree86 package. btw: the basic vnc installation and setup uses tools like twm and xterm. They are (kind of) part of the X11 standard and hence in the XFree86 package. If No, what is the advance of Xvnc in manners of size? Advantages include: No need for any hardware at all, works on a headless server. What telnet is compared to terminals, vnc is compared to Xterminals. (with setup as on http://www.sourcecodecorner.com/articles/vnc/linux.asp ;-) Lower bandwidth useage as raw X11 over the network No need to install and configure M$Windows based X11 servers ... I just need some really small X-Server on my Linux Router, to run lMule, nothing big Someone in the forum said, that VNC cuold do this... So could someone clear my confusion? Try the setup as on the above link. Only needs the Xvnc binary from the vnc distribution. THen put a vnc-viewer on your desktop machine and access the machine. btw, Linux machines most likely need to run in runlevel 5 which needs to have an Xserver properly configured. If that is not the case, just fake a setup and replace the call to the X11 server with Xvnc and it should somehow work... I don't have experience with this but it should work. (this removes any X11 from the console of your router but I dont think you need that). CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Can VNC use my NT/AD credentials?
-Original Message- From: Crist, Doug [mailto:[EMAIL PROTECTED] We use pcAnywhere because it allows us to NOT have a password on each of our hundreds of servers. We use certain global groups from our NT/AD domain. Can I do this with VNC. I've only seen the option to hard-code a password on each host. As far as I know, if you hard-code an empty password, it is without a password. That is true for the unix variants, for M$WIndows based machines, I don't know how empty the password must be: - empty password - empty password field in the registry - removed password field in the registry Then, there are more password fields in the registry of NT-based machines: one for no-one-logged-in and one for each user-logged-in. Test them and you will see. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Running Xvnc as daemon at Solaris Boot
-Original Message- From: Scruggs, David [mailto:[EMAIL PROTECTED] I am running Solaris 8 and connecting to it from a Win 2000 machine. It works exactly as we need, as long as someone has previously logged in and started vncserver as a user, not as root. What I want to be able to do is start Xvnc (or vncserver) as a daemon at system boot, and log in as the user. Right now, when I log in, it brings up the Root desktop, not the user desktop. The exact same script brings up the user desktop when started as the user. I put the start up script in /etc/rc3.d/ and made the user the owner of the script, plus set the user-id bit on the script permissions as well as on the Xvnc application. Xvnc is running as the user. Basically, all stuf from /etc/rc... is started as root. Change to an other user with `su - otheruser command` Any ideas? For normal users, setup as on http://www.sourcecodecorner.com/articles/vnc/linux.asp . Most likely, you need to only edit /etc/services and /etc/inetd.conf. Details for Solaris: read manual on inetd.conf file, use an account for Xvnc that can create an X11 socket (have write access to /tmp/X11... socket directory). CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: LAN problems due to VNC ?
-Original Message- From: Christopher Tesla [mailto:[EMAIL PROTECTED] Sent: woensdag 12 maart 2003 16:09 To: [EMAIL PROTECTED] Subject: RE: LAN problems due to VNC ? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 12, 2003 4:19 AM To: [EMAIL PROTECTED] Subject: LAN problems due to VNC ? *SNIP* On one LAN which uses Midpoint as a proxy server, the ADSL router became very hot. Have seen some suggestions about flooding the network - any truth in this? Also what is the difference between the AT T VNC, realVNC and TightVNC? That reminds me of an old Dilbert cartoon, where the pointy-haired boss asks Dilbert if there is something wrong with the firewall, since his computer is very hot... Man I love that strip...*sigh* http://www.dilbert.com for the curious among you, then, also peek at http://www.userfriendly.org/ CBee ;-) ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: RE: Meeting trouble when connecting VNC server running on Li nux.
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] I have read some materials on VNC web site. I learned that there are really some differences between Windows and Linux graphic termial service. For example, on Windows only one graphic login is permitted. And on Windows more than one person can share the same desktop as VNC does. VNC Viewer does not really login but transmit desktop snapshots and events. But on Linux, allowing more than one person graphic mode login is possible but share the same desktop is impossible! There are some terms that needs to be specified here: Console: the terminal (keyboard and display, optionally mouse) where the boot and system messages are displayed. This one is hooked to the machine or even build into it. Desktop: What you see in front of you. M$Windows, this needs to be at the console, for unix, there is no need, it might even not be possible. With vnc, on both unix and M$Windows, you get a desktop inside your vncviewer. SInce M$Windows can only serve one desktop (the one at the console) it is the desktop of the console you get from these vncservers. On unix on the other hand, the default is that you get a fresh, new desktop. But I do not find any materials about why more than one person can not share the same desktop on Linux. Is it because the kernel of Linux graphic terminal service? I am interested in this topic and want to learn more about it. On linux, more than one person can share the same desktop. Thats why you cannot find any materials why more than one person cannot share the same desktop. If you mixed desktop and console and need to know why you cannot see the console in a vnc-session, then the major reason is that the origional development was the other way round: it started the way it is on unix but that could not be done at M$Windows. Currently, there are many ways to get to the console with vnc. However, not on all systems. Do you have some materials about it? Or some suggestions? http://xf4vnc.sourceforge.net/ http://www.hexonet.de/software/x0rfbserver/ http://www.tjansen.de/krfb/ there are more... CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: RE: RE: Meeting trouble when connecting VNC server running on Linux.
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] There is one sentence in your reply which makes me puzzled. It is, M$Windows, this needs to be at the console, for unix, there is no need, it might even not be possible Do you mean M$Windows, Desktop needs to be at the console, for unix, desktop is no need, desktop might even not be possible? Or do you mean M$Windows, Desktop needs to be at the console, for unix, desktop at console is no need, desktop at console might even not be possible? The last one. For a more clear picture: a unix server most times does not have any keyboard or video card build in, it only has a serial port, labeled 'console'. You can hook a serial terminal to this port and see the boot messages and you can get a text-only login, about the same if you do a telnet to a unix machine. With this setup, you can imagine it is verry hard to get a desktop, or GraphicalUserInterface or such. There is just no hardware to do that. The pronouns realy makes me puzzled. Does it mean desktop or desktop at console? What means desktop at console on earth? When I see desktop, I do not see anything behind it. In my description, the desktop is what you see in a graphical user interface. On unix machines provided by display managers or windowmanagers like KDE, Gnome, CDE and such. On M$Windows machines, it's the windows. For the vnc part, on unix, vnc provides a software-graphical-user-interface that can be seen with vncviewer and used as if it is a hardware gui. regards, George [EMAIL PROTECTED]-La5=: From:Beerse, Corn? [EMAIL PROTECTED] Reply-To: To: '[EMAIL PROTECTED]' [EMAIL PROTECTED], [EMAIL PROTECTED] Subject: RE: RE: Meeting trouble when connecting VNC server running on Li nux. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] I have read some materials on VNC web site. I learned that there are really some differences between Windows and Linux graphic termial service. For example, on Windows only one graphic login is permitted. And on Windows more than one person can share the same desktop as VNC does. VNC Viewer does not really login but transmit desktop snapshots and events. But on Linux, allowing more than one person graphic mode login is possible but share the same desktop is impossible! There are some terms that needs to be specified here: Console: the terminal (keyboard and display, optionally mouse) where the boot and system messages are displayed. This one is hooked to the machine or even build into it. Desktop: What you see in front of you. M$Windows, this needs to be at the console, for unix, there is no need, it might even not be possible. With vnc, on both unix and M$Windows, you get a desktop inside your vncviewer. SInce M$Windows can only serve one desktop (the one at the console) it is the desktop of the console you get from these vncservers. On unix on the other hand, the default is that you get a fresh, new desktop. But I do not find any materials about why more than one person can not share the same desktop on Linux. Is it because the kernel of Linux graphic terminal service? I am interested in this topic and want to learn more about it. On linux, more than one person can share the same desktop. Thats why you cannot find any materials why more than one person cannot share the same desktop. If you mixed desktop and console and need to know why you cannot see the console in a vnc-session, then the major reason is that the origional development was the other way round: it started the way it is on unix but that could not be done at M$Windows. Currently, there are many ways to get to the console with vnc. However, not on all systems. Do you have some materials about it? Or some suggestions? http://xf4vnc.sourceforge.net/ http://www.hexonet.de/software/x0rfbserver/ http://www.tjansen.de/krfb/ there are more... CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: RE: RE: Meeting trouble when connecting VNC server running on Linux.
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] I find the parameter I am using is -inetd -query localhost -once -geometry 800x600 -depth 8 I have used info Xvnc and man Xvnc but failed to find the meaning of paramter once. Then I use Xvnc -h to find that it means terminate server after one session. What means means terminate server after one session? Can you give me some simple explanation? I have tried my best but failed to find the answer. It just indicates that Xvnc will run and accept a vncviewer connection. At the moment this first vncviewer disconnects from Xvnc, this Xvnc-process will terminate. CBee regards, George [EMAIL PROTECTED]-La5=: From:Beerse, Corn? [EMAIL PROTECTED] Reply-To: To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] Subject: RE: RE: Meeting trouble when connecting VNC server running on Lin ux. The inetd setup (http://www.sourcecodecorner.com/articles/vnc/linux.asp) cannot reconnect due to the nature of inetd: you connect ot a port but inetd moves the entire communication to an other port so the port is free for new connections. If you need more viewers to the same vnc session, you can try something like this: Start `Xvnc` or `vncserver` with the -query localhost but not using inetd. The redhat distribution has an other setup that also starts at boot and give multiple access to the same viewer. There is a website for this setup but I've lost it. CBee -- C. Beerse mailto:[EMAIL PROTECTED] talkto:+31(71)5256660 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: dinsdag 11 maart 2003 03:01 To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re:RE: Meeting trouble when connecting VNC server running on Linux. Thanks, Beerse buddie! Your method is really nice! When I see the beautiful girls on my Linux box desktop from another windows box, it really makes me exciting!! But I meet another trouble. When using Win32 server, more than one person can share the same desktop. But each person login on my Linux box has a seperate desktop. They can not share the same desktop. I think if two gays can edit the same article is an exciting thing! How to let more than two persons share the same desktop? Thanks in advance, George [EMAIL PROTECTED]-La5=: From:Beerse, Corn? [EMAIL PROTECTED] Reply-To: To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] Subject: RE: Meeting trouble when connecting VNC server running on Linux. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] I have installed vnc server on Red Hat Linux 8.0. When running a vnc client from Windows 2000 Professional, all I can see is a xterm and a grep screen. I have read from the FAQ that it is because the twm is used. Congratulations, all works perfect. Welcome to the default unix configuration of vnc. There are various ways to setup vnc to your wishes. Most involve editing a ~/.vnc/startup file. Check the mail archive or other documentation about editing this to get your prefered window manager. My favorite setup is at http://www.sourcecodecorner.com/articles/vnc/linux.asp But I want to see exactly the same on my Windows VNC viewer as on the Linux box itself. I want to see beautiful girls on desktop, the clocks, the startup menu on my Linux box, not a grep screen. That's an other peace ;-) of cake. To get the linux X11-console in a vnc session, try one of: http://xf4vnc.sourceforge.net/ http://www.hexonet.de/software/x0rfbserver/ http://www.tjansen.de/krfb/ CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: RealVNC and XF4VNC
-Original Message- From: John Li [mailto:[EMAIL PROTECTED] Hi, I am wondering if anyone knows how to use RealVNC and XF4VNC on Solaris? The reason that I try to use this comb is that RealVNC 3.3.7 still crashes on Solaris (not very often..so it is hard to reproduce the crashing). I think you need to give some details on your solaris box (version number or such, maybe the results of `uname -a`. Then, the setting is also something to know. What windowmanager do you use? What's the contents of the ~/.vnc/startup file? Or do you use an inetd configuration like http://www.sourcecodecorner.com/articles/vnc/linux.asp ? And finaly (actually the first!) what app are you running? So I just want to try if XF4VNC has the same problem. But there is no doc about XF4VNC and how to use it with RealVNC. As far as I know, xf4vnc is something totally different. It gives the M$Windows way of vnc to unix machines, provided that they use XFree86 version 4 as X11 server. Then, all implementations of xf4vnc I've seen are linux_intel based. (I've heard about XFree86 for solaris, zo xf4vnc for solaris should be possible.) btw: keep messages to the list, I have no solaris around to find more details. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: add entries Ctrl Esc and Alt Tab ?
-Original Message- From: Bruno SABLON [mailto:[EMAIL PROTECTED] I suggerer a improvement: Would it be possible to add entries Ctrl Esc and Alt Tab at the menu of Vncviewer to simulate these keys? Indeed, working especially with VNCServer under MSWindows, I miss them often. I think there is a need for these entries but I think there will be more, if not now, then in the near future. I see most of these keys include alt and ctrl. I think the next buttons can be handsome: alt for the next key: add the alt keycode to the next keypress. sticky alt: add the alt keycode to all keys until pressed again. ctrl for the next key and sticky ctrl the same way. Then, add the feature that a single alt without any other key does the alt for the next key or if sticky alt is on, it switches that off. Again, similar for ctrl. An alternate (for the ctrl) can be that the right ctrl can be released from its local usage and used to control the remote ctrl but I don't know if that will work. I do know it will not work for the alt on international keyboards since there is already difference between alt-l and alt-r, the later is frequently labeled as alt-gr and is used for example to give the Euro sign EUR. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Help
-Original Message- From: Ling Soon Leh [mailto:[EMAIL PROTECTED] I have a problem refreshing the VNC windows. It is so slow in refreshing. Can it operate at a normal window refresh rate? What's your normal refresh rate? Have you an idea of the number of bits that need to be send over at that refresh rate? An example with the settings of the display in save settings, the origional vga mode: 640 x 480 bytes at a refresh rate of 60 Hz (for the Americans, that's roughly your television definition: NTSC). The colordepth of this display is 4 bits (16 colors) but vnc always sends at least a byte per pixel so we calculate with 1 byte per pixel (256 colors, kind of like what a television set can do). 640 * 480 = 307200 bytes per screen. 307200 * 60 = 18432000 bytes per second; 18 MByte/sec A 100Mbit network can transmit 10 MByte/sec so you need a dual 100Mbit connection to keep even this low rate going. Don't expect your PC to be able to compress that on the fly, the internal bandwidth of most isa and pci busses cannot coop with that bandwidth either. Even if they run at 133 MHz, it's a constant brurst and that will congest buffers. CBee btw: If the refresh is not fast enough on M$Windows servers, try twiggeling with the polling options in the vncserver settings menu. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC 3.3.7 released
-Original Message- From: Jordan Share [mailto:[EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Andy Harter Sent: Wednesday, March 05, 2003 10:26 AM To: [EMAIL PROTECTED] Subject: VNC 3.3.7 released RealVNC is pleased to announce the release of version 3.3.7 of VNC. Binaries and source can be downloaded from the RealVNC website at http://www.realvnc.com/download.html This release is completely compatible with previous versions. It is primarily a bug-fix release, providing greater reliability and stability on Windows platforms. For full details see http://www.realvnc.com/3.3.7-release-notes.html Does anyone know if: Improved reliability of Windows VNC server on multi-processor systems. means that the performance doesn't suck on multi-processor systems anymore? I'd not had problems with the service crashing on me (which reliability connotes, to me anyway), but it is /dog/ slow. I've installed it on our system, but, alas, it requires a reboot to start it up again, and it's a production machine, so I can't take it down. I think if you don't use vnc, you can savely stop and shutdown the vnc services. Then update vnc and restart the services. That is, on Wnt based systems. DETAIL: I don't know if the installer does an automatic reboot. Correct me if I'm wrong but the only reason it can do so is to activate the file associations and start the services. The first one is already done with the previous install, the second can be done manually. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC only allowing 1 gnome session
-Original Message- From: Andrew Rosborough [mailto:[EMAIL PROTECTED] I attempted to search for a solution to this problem, but couldn't find anything. When I have two users running vncserver on a Red Hat 8.0 computer, the second issued display, :2, does not work. Here are the log files for that display and my xstartup file. If you have multiple users working with vnc at the same unix box, considder the inetd setup as on http://www.sourcecodecorner.com/articles/vnc/linux.asp . It avoids lots of problems with concurrent sessions that influence each other. CBee --siberia:2.log-- log removed --xstartup-- #!/bin/sh xrdb $HOME/.Xresources xsetroot -solid grey #ssjxterm -geometry 80x24+10+10 -ls -title $VNCDESKTOP desktop #ssj twm gnome-session Here is a problem: If this gnome is started from within an other gnome, they are hooked by several things. Some updated xstartup files that start gnome, unset gnome specific variables here. Check for all of them. To avoid gnome settings from other gnome sessions, best use the inetd setup as described at the link above. If inetd is not an option, start this vncsession with `rsh localhost vncserver`, which should disable the gnome settings. (unless, they are propagated trough rsh...) xstartup 9L, 151C 1,1 All If you can see any problem with this please let me know. Andrew Rosborough http://www.rosborough.net http://www.rosborough.net/ ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Inetd+Solaris 7+VNC 3.3.6 : Not working
-Original Message- From: Francis VIVAT [mailto:[EMAIL PROTECTED] We are trying here to use VNC with -inetd option, but we don't have any response. I've read http://www.dei.isep.ipp.pt/~andre/extern/ixvnc.htm There is an alternate description at http://www.sourcecodecorner.com/articles/vnc/linux.asp. Compare both worlds. and add to my /etc/inetd.conf : vnc-1024stream tcp nowait root /usr/local/bin/Xvnc.5 Xvnc.5 -inetd -broadcast -once -geometry 1024x768 -depth 8 -cc 3 vnc-1280stream tcp nowait root /usr/local/bin/vncserver.inetd vncserver.inetd What is `Xvnc.5` As far as I know, that is the manpage! not the binary!!! (one line to try directly, on line to try with a script) I've add to /etc/services : vnc-10245950/tcp vnc-12805951/tcp And last, my vncserver.inetd script : /usr/local/bin/Xvnc -depth 8 -cc 3 -inetd -once -broadcast -fp tcp/localhost:7100 Exchange '-broadcast' with '-query localhost' or '-query xdmcpmachine'. try this with `Xvnc :4 -query localhost` and see if you get a login box at `vncvierer Xvncmachine:4`. Be verry sure stdio of the script is hotwired to stdio of the script since that's where inetd will connect the port to. After a kill -HUP inetd.pid, I try from my PC : Not all inetd listens to -HUP. It's save to do (in one line!): /etc/init.d/inetd stop; /etc/init.d/inetd start vncviewer unixbox:50 or 51 This 50 and 51 will connect to vncservices at ports 5950 and 5951. That's the reason the above (5900, 5901) does not work. And nothing occurs. If I look on my unixbox what is going on : netstat -an | grep 59 *.5950 *.*0 0 0 0 LISTEN *.5951 *.*0 0 0 0 LISTEN So, what's wrong ? I think you start with exchanging the 'Xvnc.5' to 'Xvnc' in the inetd.conf file: use the same binary as in the script file. If you definitly want to call a script from inetd.conf, then be verry sure you read the documentation since inetd does not 'just execute': Stdin, stdout and stderr of the binary must be hooked to the stdin, stdout and stderr of the script. The double name in the inetd.conf file, the first must be a binary, the second is $0. For scripts, the first must be the script-engine (/bin/sh, /usr/local/bin/perl or such), the second the filename of the scipt (which does not need to be executable). Details on this vary between systems. Success CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Ctrl + Alt + Del
-Original Message- From: Stewe Lundin [mailto:[EMAIL PROTECTED] Im having difficulties the Ctrl + Alt + Del combination in VNC, the combination makes my local computer reakt instead of the remote one. Anny ideas or solutions ? The ctrlaltdel option from the viewer-window menu. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Linux and VNC off CD
-Original Message- From: Johan Pienaar [mailto:[EMAIL PROTECTED] I am running VNC server on a RedHat Linux 8.0 server. Does anyone know where I clould download some sort of linux and VNC viewer that boots and runs off a CD? (Diskless workstation running VNC viewer). If it needs to be a cd, try if vnc is in knoppix (www.knoppix.com). For diskless stations that do have a java-enabled browser, use the java-viewer in the browser at http://machine:5801/ (the 5801 is the port you give with -httpport to the server, default 5800+display number) CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Scaling the JAVA client
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Is there anyway to scale the size of the JAVA VNC client other than by using the screen resolution feature in Windows. I would have thought that this setting would be contained somewhere in the RFBprotocol file within the VNC sources. But has anyone actually managed to get this function to work, i'd really appreciate to hear anyones ideas as to how this may be achieved. As far as I know: The vnc server does not know anything about the scale the viewer shows to the user. The rfb protocol does not do anything with scaling information Some vnc viewers have scaling capabilities. They just add or remove lines and columns of pixels. If your viewer does not have scaling, try an other one that has scaling. To install a vncviewer, you don't need to be superuser, administrator or such, you can download the vncviewer.exe file and just run that. THen you can use the scaling from that viewer. If your webbrowser does not support scaling and your java-vncviewer does not support scaling, have a look at Opera: That has scaling! Unfortunatly, it does only scale the viewport for java apps, not the java app itself CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Capturing my Unix destop
-Original Message- From: Jerry Westrick [mailto:[EMAIL PROTECTED] There is another option. In which you can have your cake and eat it too! If your Console was a vnc session, you could allow multiple connections to it, and then you could connect to you Console. That's not only for the 'console' session as you refer to. It is to all vnc servers, if they are not configured not to (e.g. -once and/or -inetd and/or -nevershared options used) You'll note the quotes around Console since in Unix/Linux there is nothing special about the Concole session, other than it is physically connected to a (the only?) local graphic card. It is even worse, most unix servers have a character-termial console. From a unix point of view, console is just the place to dump the boot messages and to give access in single-user mode and all such sysadmin stuff. Take a look at /dev/console, it is a character device. Take a look at the -C option to xterm. On Tue, 2003-02-25 at 12:28, Beerse, Corni wrote: -Original Message- From: Ashutosh Dutta [mailto:[EMAIL PROTECTED] I just downloaded 3.3.6 VNC for Linux. I am running vncserver in one Linux box and am running vncviewer in another Linux box. Although I try to run vncviewer in another Linux box, I can just open another Xterminal. I would like to be able to export (grab) the desktop of the server and be able to see what is going on in the server. Is there way to achieve that using VNC program? On unix (that includes linux) implementations of vnc, you get a fresh X11 session inside the default vncviewer. You never get the console. As far as I know the history of vnc, this unix way of giving a new session was the origional goal of all vnc but could not be done (easy) in M$Windows. So the M$Windows behavoure alters from the other vnc implementations by giving the console. If you like to get the console on a unix/linux machine, have a look at the next sites, all with their own advantages and disadvantages: http://xf4vnc.sourceforge.net/ http://www.hexonet.de/software/x0rfbserver/ http://www.tjansen.de/krfb/ The are all alternate vnc-servers with some restrictions and advantages. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: winXP to sol9 via VNC
-Original Message- From: stephen gilliss [mailto:[EMAIL PROTECTED] read the info on configuring vnc but am still confused about a couple things. hope someone can set me straight. 1. does vnc support win xp? i believe answer is 'yes'. I'm a believer too ;-) 2. does vnc support solaris 9? again, i believe answer is 'yes'. Yep, based on the fact Solaris 9 runs older solaris binaries. You can use binaries or compile from source. It's up to you. btw: some general Solaris problems: The user that runs `Xvnc` (started from `vncserver` script) needs to have write access to /tmp/.*X11*, the directory where X11 sockets are stored. My favorite setup: http://www.sourcecodecorner.com/articles/vnc/linux.asp. For Solaris, you only need to edit /etc/services and /etc/inetd.conf and restart the inetd deamon according to the file. Some general Unix (including Solaris) problems: Use a proper fontpath. Run `xset -q` at the X11 console of the vncserver machine to see a usable fontpath. Use the -fp option to set it. 3. i have sol 9 at work hidden behind firewall(s). i have win xp at home via broadand cable modem. i want to telecommute from home but need the resources attached to my sol9 box. how can vnc help? Once you can ping or telnet between the machines, you can use vnc to get a graphical session. If there is a firewall or some nat-routing inbetween, this will make your live a little harder. Best ask your sysadmin to give access. 4. which box gets vnc server and for what platform? which box gets vnc viewer and for what platform? The machine at your desktop runs the viewer, the remote machine runs the server. All for the local system. 5. what are the security (or lack thereof) implacations of using vnc in this manner? is there anyway to increase security using vnc? if so, what, how? vnc has not security build in. Best to use vpn, tunneling or ssh or such. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: vncserver on my gateway server
-Original Message- From: Jonathan Linowes [mailto:[EMAIL PROTECTED]] Are there actually unix/linux apps that one would want to use VNC for? I've never really understood the desire to have a GUI on linux. I know one! I know one!: vncviewer to access and maintain M$Windows machines... ;-) CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Automatic Encryption
-Original Message- From: Mike Miller [mailto:[EMAIL PROTECTED]] On Fri, 14 Feb 2003, Illtud Daniel wrote: Mike Miller wrote: Here's a simple question: Why can't VNC server and viewer just use established SSH protocols to communicate? Incorporate OpenSSH code into the server and PuTTY (or whatever) code into the viewer. Isn't that workable? Then what happens when an exploit for OpenSSH is discovered? That's the problem with 'incorporating' OpenSSH into VNC, you've then got to keep that code in sync with any security fixes to OpenSSH, and that's suddenly more of a job. OK, but I would rather have a VNC with a vulnerable OpenSSH incorporated than with no SSH at all. When a security hole was found in OpenSSH a while back, I was seeing lots of attempts on port 22. I get almost nothing, ever, on ports in the 59xx range. Adding a little encryption should only improve security, even if it is vulnerable encryption. If you accept vulnerable OpenSSH, you can also see the currently available compressions as encryption. I personally think the average hacker knows more about the vulnerable OpenSSH than it knows about the vnc protocol. Also, *implementing* crypto properly, even if starting from others' code, is *damn difficult* - and probably not something you want to be dabbling with if it's not your forte. I'll hope that someone out there has the skills. I sure don't. Thinking about it: Currently the question is: enable encryption. Second question: I want it working with the webinterface too.. Third question: Can this be automated... final question: HELP I'M HACKED... Final question, US version: I sue VNC for being hacked... There are plenty of encrypting windows versions of VNC to be had, but unless somebody's got a really good idea about incorporating encryption in the RealVNC cross-platform codebase, I'd rather leave it out. Maybe we'll get lucky and someone will figure it out. In the meantime, I'll use portforwarding or I'll live without encryption. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Automatically Starting VNC-server
-Original Message- From: George Gambill [mailto:[EMAIL PROTECTED]] Correct me if I am wrong or missing a better way. It seems that if I start vncserver from root (RH8), I must use the root password to start vncviewer (Windows 2000). If I start vncserver from user1 (RH8), I must use the user1 password to start vncviewer (Windows 2000). If a unix user (root or an other) starts `vncserver` for the first time, it has to type a new password for the session. This password is used for every `vncserver` started by that user and has to be used from the vncviewer that connects to it. I infer from this that someone needs to be logged in the server to start vncserver. Did I miss something? That's the default configuration. With that default configuration, you can leave the vncserver running forever and connect every time you like. RedHat comes with some scripts (in the init area) that can be configured to start a vncserver for selected users. This users must have run `vncserver` at least once to generate their password. Assuming the above is true, is there a way to start vncserver automatically when user1 logs in? Yes: http://www.sourcecodecorner.com/articles/vnc/linux.asp . It obsoletes every user specific configuration. You don't need a vnc-password anymore, use the unix account. If the above is not a valid assumption, what is the best way? I prefer http://www.sourcecodecorner.com/articles/vnc/linux.asp . CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: vncsetup - step by setp
-Original Message- From: Jonathan Linowes [mailto:[EMAIL PROTECTED]] Now it does not automatically boot into the gui desktop (I guess that is expected? what would I change if I wanted the system to have a gui (ctrl-alt-F7) and a vncserver available at boot up?). When I run vncviewer from another machine, it comes up nicely and I can run the gui apps. However, when I open a console there appears extra tabs or spaces between characters on the prompt and anything I type on the command line. This can be a font problem, then it can also be something else. You say console, I think you indicate a terminal(-emulator) like `xterm` or such. Or do you have an app called `console`? Also if I su to root and try to run, say , kate, I get the message Xlib: connection to SERVER:1.0 refused by server Xlib: Client is not authorized to connect to Server kate: cannot connect to X server SERVER:1.0 That's due to X11 security. See the `xhost` command for some details. `xhost` will show the current state, `xhost +` will remove all security. It's also triggered by the -ac command to Xvnc. If you remove that, it will start as if `xhost +` is one of the start commands. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Re[2]: Automatic Encryption
I think the simple answer is: vnc cannot because it cannot code itself. The developpers willnot/cannot because it is not in the developmentpath. As far as I'm concerned, the developmentpath for the core vnc development will not incorporate new features like these as long as the spinoffs like zvnc, yvnc, xvnc, wvnc, vvnc, uvnc and such have not implemented it successfully and satisfactory. Leaves out YOU: Do it yourself or pay someone to do it for you. CBee -- C. Beerse mailto:[EMAIL PROTECTED] talkto:+31(71)5256660 -Original Message- From: Mike Miller [mailto:[EMAIL PROTECTED]] Sent: vrijdag 14 februari 2003 16:23 To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re[2]: Automatic Encryption Here's a simple question: Why can't VNC server and viewer just use established SSH protocols to communicate? Incorporate OpenSSH code into the server and PuTTY (or whatever) code into the viewer. Isn't that workable? The keys wouldn't be encoded in the password, they would be handled in the way that SSH normally handles them. Mike On Fri, 14 Feb 2003 [EMAIL PROTECTED] wrote: You cannot just KISS, not with encryption, this is the point. You cannot just apply AES to the stream. How do you plan to agree on the keys used for encryption ? Use the VNC password ? I think not, you have not enough entropy in a normal password). How do you plan to exchange the keys in a safe way (remember this are the keys used to encrypt the AES tunnel, so you don't have encryption in place). Now let's assume you get one / some random 128 (or more) bits key(s) and manage to exchange them somehow securely (let's say you go to each host and remote with floppies). How do you plan to make the authentication ? Just encrypt the streams and leave the remote-host trying to find each other like deaf bats ? What if an attacker records and plays back the stream at a later time ? And this is the simple part, to put all the pieces together. There are a lot of design problems to be solved BEFORE you start writing ONE line of code. But it is _very_ hard to write secure code, even if you have a very good and complete algorithm. Many trusted programs (like apache, openssh) had at least one big remote buffer overflow last year. And we are talking about software using well known algorithms, not some one week old inventions, with very good track record for security. It is _extremely_ unlikely to invent and to implement something even remotely secure as openssh (which is not bulletproof) in one year, as a plugin for vnc. Sometimes it is better to know that you have no security/encryption than to rely on bad security/encryption. And you will _not_ have good security/encryption as an afterthought for vnc (not that I don't trust the vnc programmers). ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Automatic Encryption
-Original Message- From: Kaplan, Andrew H. [mailto:[EMAIL PROTECTED]] Just a general question: Are there plans for ssh encryption built into the VNC application in any future versions? Not to my knowledge. For unix it is common to keep separate functions separated. One experimental version of VNC, known as ZVNC, does this for Windows. Ask them for a unix implementation... ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: vncserver slightly disprespects -geometry setting
-Original Message- From: Shing-Fat Fred Ma [mailto:[EMAIL PROTECTED]] I'm finding that vncserver doesn't accurately respect the -geometry specification. I'm running TightVNC 1.2.7 on Solaris 8. The command is: vncserver -nolisten local -nevershared \ -geometry 1394x986 -localhost -depth 24 What I get in the viewer is: $$ xdpyinfo | grep dimension dimensions:1396x986 pixels (473x334 millimeters) That's true and documented somewhere in the vnc documentation: Every geometry is respected but silendly rounded upwards to a proper power of 2. This is due to internal optimalization. This is because the compressions need a nice number of squares of some size to not have to deal with half squares. I tried vncserver -nolisten local -nevershared \ -geometry 1394x987 -localhost -depth 24 and got $$ xdpyinfo | grep dimension dimensions:1396x988 pixels (473x334 millimeters). Weird, eh? I was in the impression the X size was silently rounded upwards to multiples of 8 in both ways but you just show me the number I had in mind was wrong, at least in the y direction. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: camera+audio
-Original Message- From: Giovanni De Luca [mailto:[EMAIL PROTECTED]] How may I send video audio information by my webcam mic. from my host where VNCserver is running to remote hosts where VNCviewer is running? vnc does not and most likely will not support audio (beyond 'beep'). vnc does support some video as long as it is not accelerated by any means: vnc reads the video memory hence the video needs to be stored in the video memory. Then there is such a thing as the video refresh rate. Don't expect a better refreshrate than once a second. I don't know details but I'm sure there are better protocols to put audio and video streams over the network. I expect even free implementations of such protocols. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: kde desktop
-Original Message- From: Jonathan Linowes [mailto:[EMAIL PROTECTED]] Sent: maandag 10 februari 2003 10:15 To: [EMAIL PROTECTED] Subject: kde desktop hi again, I have another machine with RH 8.0 linux running kde desktop. I modified the ~/.vnc/xstartup file and replaced the xterm line with startkde Should have replaced the twm line. Need to remove some environment variables too. Check teh archive for details. For the best result, dont start vncserver direct but with a rsh to localhost: `rsh localhost -e vncserver`. Better jet (my favorite): http://www.sourcecodecorner.com/articles/vnc/linux.asp . it's not exactly my normal kde desktop. eg The bar on bottom of the screeen has a title bar kicker and when I open an app I need to place the window position manually. Am I calling the kde correctly? are there parameters that RH uses from the login screen that I'm missing? sorry that I don't know where t o look for this info thanks! jonathan ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: cut-paste with VNC on linux - 2 proposed changes
-Original Message- From: Jerry McBride [mailto:[EMAIL PROTECTED]] On Sat, 08 Feb 2003 20:12:02 -0800 Ron Goldman [EMAIL PROTECTED] wrote: Hi. I'd like to propose 2 changes to the way that the Linux Xvnc server handles cut paste to the VNC viewer app. I'd appreciate any feedback from other VNC users/developers. (Note: This only apply to the Linux version, the Mac Windows versions are fine as is.) Can you clarify that a bit better? I've been cut-n-pasting on linux servers and clients without any problems what-so-ever. I think the problem is at the X11 side: X11 has specified several clipboards. I recal the app `xclipboard` whith which one can manage the clipboards. In general, there is a clipboard in which the current selection is available and a separate one (or more?) for the copy or cut actions. Some apps don't use the proper one and some apps use both in parallel. The Xvnc only copies one of the clipboards to the viewer side. For some apps and window managers, it's the proper one (it works), for some it's the wrong one (it does not work). Are you perhaps running into issues when you mix windows and linux? Major problem is pasting from M$Windows to Unix which something else in the clipboard than text. It will ruin your day... CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
vnc session on internet... http://www.workspot.com/
for what it's worth: I fonund it at the register (http://212.100.234.54/content/4/29009.html) and it gives a RHLinux session using vnc: http://www.workspot.com/ (read their faq, it's true vnc!) cbee -- C. Beerse mailto:[EMAIL PROTECTED] talkto:+31(71)5256660 ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Colourmaps (was Re: No write access to /tmp/.x11-unix )
-Original Message- From: Damian Skeeles [mailto:[EMAIL PROTECTED]] Thanks! I'd read a bit about colormaps and pixelmaps, and was starting to think that it was a problem with the pixel maps (as the error implies). I decided to try out all the colormap settings again though, and found out that the app only runs in an 8-bit map (shows how old it is!) In the X11 area, the colordepths are about same age. The 8 bit has an advantage over the other colordepths, that is the private colormap and the ability to alter the colordefinition for a given color number. Its used by several signalling apps that can change the color scheme of the entire app in some simple commands to allert the user. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: x0rfbserver for linux.
-Original Message- From: jay chandra [mailto:[EMAIL PROTECTED]] hi i'am using x0rfbserver for linux. how can i capture the list of IPaddresses of all clients connected to server. Try the `netstat` command and see who uses the vnc ports (like `netstat -a`, it lists all). This will show the actual situation, not who ever has connected. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Separate Hard Disks
-Original Message- From: Joe Warner [mailto:[EMAIL PROTECTED]] Is it possible to run VNC on separate hard disks on the same machine? ? I have WIN98 on one hard disk and FreeBSD on another, on the same PC. I would be great if I could access my WIN98 drive from FreeBSD using VNC. That's not something for vnc. Vnc only provides access to a running system. Hence if your processor runs freebsd, it does not run W98 so the W98-vnc does not run so you cannot use it for anything. If it is to access the disks, freebsd should be capable of reading the W98 disks. Since W98 uses the fat filesystem, you should be able to mount those disks from freebsd. If freebsd cannot access your w98 disks, and you realy need this access from a unix variant, considder changing to linux, it can access the disks. btw: the W98 disk is not known as c: from freebsd, it is most likely called something like /dev/hda1 or such. You need to mount it as all other disks before you can access the files, the /dev/hda1 is a presentation of the entire disk as a sinlge file If you need access trough W98 while running freebsd, have a look at vmware. However, I don't think you have the knowledge to successfully use it. BTW - I searched and searched for related information and couldn't find anything. There is none. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: vnc over wireless network?
-Original Message- From: Kurt W. Wiseman [mailto:[EMAIL PROTECTED]] I've seen a couple postings in the archives that say it works for 80211.b but I've been unable to get my setup here at home (80211.a) to connect. The server is a win2k machine and the client/viewer is win98. I'd say vnc can run over every network, as long as the network provides tcp/ip. With respect to the ISO-OSI levels, those 802 protocols are at level 1 or 2, as ethernet is. TCP/IP is the level 3 protocol. So: yes, it will work. The win98 laptop was connected to our LAN via Ethernet but that slot is now filled with the wireless network card. I can see each computer from the other one via Network Neighborhood and we've got file sharing working just fine. What do I need to do in order to connect thru vnc? Be sure you can use tcp/ip protocols over the network. The M$Windows protocos you mention don't need tcp/ip, they also can use other network protocols (iso-osi: level-3 protocols). If you can ping, telnet, ftp or use other internet protocols, then you should be able to use vnc too. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: [Feature] Using MS Windows as window manager
-Original Message- From: Don Geddis [mailto:[EMAIL PROTECTED]] Greg Breland [EMAIL PROTECTED] writes: just start your application with a -geometry switch set to the resolution you are running your vncserver at. When you connect to the vncserver it will appear to just be one application running inside a Windows window. If your app does have multiple windows then you might try a very minimal Window Manager. I tried out Greg's suggestion, and it works great! I installed a minimal X window manager (SWM: Simple Window Mangaer, smaller than rxvt), and set up a separate VNC desktop for each of my applications, sized to the application. I only like to add to this that you don't need a window manager. Most applications can perfectly do without, specially if the app listens to its -geometry option. Now I've got a separate Windows XP windows for each of my remote X applications. Awesome! Thanks, Greg. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Problems running vncserver on Solaris 2.5
-Original Message- From: Firstname Lastname [mailto:[EMAIL PROTECTED]] I'm able to run vncserver on my solaris machine and run a viewer on my windows NT machine and see a simple X desktop environment. But, I would like to be able to see my CDE environment and can't figure out what file to point my .vnc/xstartup at. Yesterday, I answered http://www.sourcecodecorner.com/articles/vnc/linux.asp to the same question. It avoids the need to configure ~/.vnc/xstartup. On solaris, only need to configure /etc/services and /etc/inetd.conf and restart inetd. Also, when I do: % vncserver -kill :1 the server dies successfully but then my CDE environment is left unresponsive to any keystrokes and I have to remotely login and reboot the system to wake up my keyboard. Can anybody tell me what is going on here? Thats because if you start cde from within cde, it needs to be hided perfectly. If not, you get problems like this. TO avoid it, I'd like to advice the above setup. If you definitly need a vncsession that you can reconnect to, best to login to the machien without cde (like from a telnet or an rlogin or even rsh) and start vnc. Detail, you can do telnet, rlogin or rsh to localhost: `rsh localhost vncserver`. To avoid the password prompt, add 'localhost' to your ~/.rhosts file. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Emulation of Sun Keyboard Specific Keys
-Original Message- From: Sean Adam [mailto:[EMAIL PROTECTED]] I'm wondering if there is a way to emulate the Sun Keyboard keys (such as COPY PASTE OPEN FIND FRONT) when running a vncviewer on the PC (WIN2K specifically) There is an app called `xkeycaps` in which you get a window with a keyboard of your choice. Then you can press the keys with you mouse to get the key-event. It also works reverse: press a key and see which key it thinks you pressed. If you play around with it, you can totally redefine your keyboard and save the output. Once you have a proper file, you can load it with `xmodmap` every time you connect. Like in ~/.vnc/xstartup or such. With the current viewer, you can somehow define some actions in the menu (and maybe hook them to keys?) The major problem is there are more keys on the sun keyboard than you have available on your pc-keyboard. CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: windows manager problem
-Original Message- From: Technology Listserves [mailto:[EMAIL PROTECTED]] I appreciate your assistance. With regards to the last log file, I was trying to use KDE. I would rather have Gnome. So, for this xstartup file: #!/bin/sh xrdb $HOME/.Xresources xsetroot -solid grey xterm -geometry 80x24+10+10 -ls -title $VNCDESKTOP Desktop gnome-session The lines that start with an x can be removed (they just start other stuff you don't need if you start gnome). I get this log: 08/01/03 13:27:09 Xvnc version 3.3.6 - built Dec 2 2002 10:54:00 08/01/03 13:27:09 Copyright (C) 2002 RealVNC Ltd. 08/01/03 13:27:09 Copyright (C) 1994-2000 ATT Laboratories Cambridge. 08/01/03 13:27:09 All Rights Reserved. 08/01/03 13:27:09 See http://www.realvnc.com for information on VNC 08/01/03 13:27:09 Desktop name 'X' (EDILXPS01:2) 08/01/03 13:27:09 Protocol version supported 3.3 08/01/03 13:27:09 Listening for VNC connections on TCP port 5902 08/01/03 13:27:09 Listening for HTTP connections on TCP port 5802 08/01/03 13:27:09 URL http://EDILXPS01:5802 gnome-session: you're already running a session manager You are inside a gnome sesision and start vncserver which tries to start an other gnome session. Gnome cannot run inside gnome. You can avoid that with one fo the next ways: setup as on http://www.sourcecodecorner.com/articles/vnc/linux.asp (my favorite) login without gnome. Looks funny but try one of the next: `rsh localhost vncserver` or `rlogin localhost` `telnet localhost` and start vncserver at that prompt. REmove all gnome settings before starting gnome: In the xstartup script, unset all gnome environment variables. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: cpu utilization query...
-Original Message- From: jay chandra [mailto:[EMAIL PROTECTED]] hi i'm runnung x0rfbserver on linux7.2. when a client connects to server it uses 20% of the cpu utilization.When another client connects it increases to 40%. Wild guess, more users will consume more cpu. 1)So how many clients can connect to a server simultaneously? roughly unlimited but once the cpu usage has no free cycles (idle drops below 10 %) you will experience a serious performance drop. 2)what are the side effects(with respect to frame refresh rate) seen if 5 clients are connected at the same time? Local screen refresh is in hardware so no harm there. Screen update will drop verry fast. Try using no compression (send raw info). It consumes less cpu (but more network bandwidth) CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Problems with RedHat 7.3
-Original Message- From: Thomas Norris [mailto:[EMAIL PROTECTED]] Sent: vrijdag 3 januari 2003 18:10 To: [EMAIL PROTECTED] Subject: Problems with RedHat 7.3 I am rather new to this using Red Hat, so please bare with me. I have installed VNC on my Redhat 7.3 machine and I am able to launch the VNCServer and I am successful when trying to connect. But my problem is that all I get is the command line. Should there be a GUI display as when I connect to a Windows machine using VNC? Any help would be greatly appreciated. Once installed, you need some configuration too. Some startpoints: If used the RedHat supplied packages, read the RedHat supplied documents to! Or use one of the next setups: For a terminal-server like setup: http://www.sourcecodecorner.com/articles/vnc/linux.asp To get the linux console in a vnc session: http://xf4vnc.sourceforge.net/ CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: vnc .. black vnc client screen
-Original Message- From: Bruce Douglas [mailto:[EMAIL PROTECTED]] A simple question (I hope!!). I can run the vnc browser (java) and I see the unix box (GNOME) as I should) In keeping everything simple, I'm trying to fire up a Windows VNC Client to talk to a Linux VNC Server. Strange... Peek at the HTML code in your browser to see which port is used for the vnc (RFB) communication. THen subtract 5900 from that portnumber to get the vncviewer display number. You should see the same contents as in the browser. However, When I run the VNC Client (Windows) a black window is displayed. This used to work before (I think)!!! I've done a lot of rewiring/etc.. I can't really say that everything has actually worked on this box!! What unix/linux distribution? Did you use the vnc-bundles from the distribution? Vnc comes with several major linux distributions. Best to start using that. Once you get it working, you can simply exchange the binaries (only `Xvnc` and `vncviewer`) to the newest release. I run vncserver on the unix box. It appears that I have multiple VNC displays running. I'm new to unix, so I don't know how to go about actually checking to see which displays are actually running. My best setup: http://www.sourcecodecorner.com/articles/vnc/linux.asp for terminal-server like setup of vnc. To get the console: http://xf4vnc.sourceforge.net/ Any help/assistance would be greatly appreciated. Or any pointers to online docs/etc http://www.realvnc.com/ ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC 3.3.3r9 'Enter' Problem
-Original Message- From: Tobias Gogolin [mailto:[EMAIL PROTECTED]] I just discovered it today using matematica trying to prove something to my Professors And then as you may know Matematica uses the enter key on the numeric pad as the one that causes it to (re)calculate and the regular enter key as a new line only SO no Matematica over VNC ! There should (needs to) be a solution (I was using the same VNC 3.3.3r9 to control Matematica4.1 running on Win2000Pro accessing it from WinXP) It is a known issue (at least for me). I've read the newer (newest) version somehow solved this issue but I have not had the possibility to test it. (see http://www.realvnc.com/) CBee ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Still Getting Blank Desktop
-Original Message- From: Michael Milette [mailto:[EMAIL PROTECTED]] Sent: dinsdag 17 december 2002 08:20 To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Re: Still Getting Blank Desktop I think there is something mixed in here, This unset is needed in ~/.vnc/startup which is not used at all in the used (inetd) setup. Did you unset SESSION_MANAGER? Gnome won't let you run two instances of itself unless you issue that command before starting Gnome in VNC. Alternatively you can try using the KDE desktop instead. Apparently it doesn't mind running two instances of itself. The fact that you haven't made the changes to autostart at boot might actually be the problem. If the VNC server was to startup on boot, there would not be another instance of Gnome running to interfere. Finally, don't forget to check the *.log files in your .vnc directory for hints on what might be causing the problem. Michael Milette (Gee, I think I am actually starting to sound like I know what I am talking about) At 01:19 AM 2002-12-17, Rich Lichvar wrote: Okay, I followed the documentation from Source Code Corner on setting up VNC on Linux so I can actually get to the Gnome (or KDE) desktop. 1. VNC is installed in its default paths. 2. xdm-config was edited per doc. 3. XDMCP on port 177 was enabled in kdmrc 4. Xaccess was edited to uncomment the *#any host ... line. What I get is a blank desktop whereas before at least I got a command window and the rest of the desktop was blank. So, what did I do wrong? (Gnome is set as the default desktop.) I won't do the changes to autostart at boot until I get it work. RichLich ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: 3.3.5: Solaris78, cut/paste buffers not working
-Original Message- From: Kevin Minney [mailto:[EMAIL PROTECTED]] Sent: vrijdag 13 december 2002 00:30 To: Grant McDorman; [EMAIL PROTECTED] Subject: RE: 3.3.5: Solaris78, cut/paste buffers not working Grant, I tried the xstartup I mentioned in my last message but although the cut/paste buffers appeared to be working (using autocutsel06) I had problems with my CDE. I tried various combinations along the lines of what Charles Hines suggested in his post to this group on Dec 3rd. The best I could get was with the xstartup looking like this: #!/bin/sh dtession CDE runs but I can no longer access some of the window setup via the buttons on the 'toolbar' at the bottom of the screen (such as the Application manager/desktop controls which I typically use to set the wallpaper to none, to speed up the connection). This isn't a real problem however as I am able to set the desktop controls using the mouse .. right click/Tools/Style manager The only real problem I have with this setup is that my Backspace and Delete keys are no longer recognized (really annoying). Hitting the BS key just returns '^H', hitting the delete key aborts what you had typed and issues a LF/new line. I am hoping this is something really simple, maybe with this new setup (dtsession ) I now need to configure in my .dtprofile, my .login or my .profile, do you or anyone else in this group have any suggestions? Start Xvnc with the next command: # Xvnc :4 -query localhost Now connect with vncviewer and login in the vnc session (`vncviewer Xvncmachine:4`, use your unix login). Check if your problem exists in this setup. If your problem has gone, edit /etc/services and /etc/inetd.conf according to http://www.sourcecodecorner.com/articles/vnc/linux.asp and restart inetd. If this works, the problem is the communication deamon used by the CDE software: Some apps in your vnc session reuse the communication deamon of the session from which vncserver is started, other apps use the communication deamon of the new cde session in the vncserver. I don't know details but I do know some apps don't use the $DISPLAY variable but an other way to find the X11 server. Using xdmcp (that's what happens with -query localhost) starts an entire new login session which is by definition not connected to any running session. CBee thanks, Kevin -Original Message- From: Kevin Minney Sent: Tuesday, December 10, 2002 3:10 PM To: Grant McDorman; [EMAIL PROTECTED] Subject: RE: 3.3.5: Solaris78, cut/paste buffers not working Grant, many thanks for looking into this. Here is where I am currently at .. using 3.3.5 server on my Unix box (Solaris8, CDE) Running autocutsel version 06 Cut/paste between PC-Unix-PC works perfectly from PC to Unix, but is very intermittent going the other way (Unix - PC). However I can get around this by cut and pasting something from PC to Unix, then cut/paste from Unix works again. Very, very tedious but better than having no cut/paste functionality at all. The plan, at a convenient point I want to shut down my 3.3.5 server and install 3.3.6. Also I want to switch to using a xstartup configuration I got from a recent email posted by Charles Hines to this mailing list. A quick test the other day on another Solaris8 machine suggests this xstartup, with autocutsel may work. Here is the xstartup I am planning to use .. #!/bin/sh xrdb $HOME/.Xresources xsetroot -solid grey #xterm -geometry 80x24+10+10 -ls -title $VNCDESKTOP Desktop #dtwm #/usr/dt/bin/Xsession dtsession I will let you know how I get on. Please don't spend any time modifying a version of 'x2vnc' for me, although it is very kind of you to offer. I must say that as great as VNC is, I have been surprised by lack of proper cut/paste support, or at least with my Solaris8/CDE setup. This can't be an uncommon setup for people to use these days can it? I suppose this is why Michael Witrant created autocutsel, unfortunately when I had to migrate from Solaris 2.5 to 2.8 autocustsel stopped working reliably. regards, Kevin -Original Message- From: Grant McDorman [mailto:[EMAIL PROTECTED]] Sent: Tuesday, December 10, 2002 2:42 PM To: Kevin Minney; [EMAIL PROTECTED] Subject: Re: 3.3.5: Solaris78, cut/paste buffers not working -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I finally got around to looking into this. While I am not running CDE, I did use one of the CDE apps (dtpad) to investigate this. To understand what is going on, you need to know that X (including the Xvnc) has two copy and paste mechanisms: the cut buffer, and the selection mechanism. In addition, the selection mechanism can support multiple copy and paste buffers. Most modern applications, including CDE and KDE, use only the selection mechanism. With VNC, there are two problems: 1)
RE: VNC used for Desktop Sharing KDE 3.1
-Original Message- From: Michael Milette [mailto:[EMAIL PROTECTED]] Sent: vrijdag 13 december 2002 03:59 To: [EMAIL PROTECTED] Subject: VNC used for Desktop Sharing KDE 3.1 I was reading up on the upcoming KDE 3.1 today. One of the new features being introduced is Desktop Sharing. Running as a KDE service, it will allow you to share your desktop using the RFB protocol, better known as VNC. This will allow a friend or an administrator to fix problems on your computer. It will also be useful to show your desktop to somebody else at a remote location. It is supposed to be compatible with all regular VNC/RFB clients. The desktop sharing will apparently be based on invitations, most likely similar to the system now included with Windows XP. You can read more about it at http://www.tjansen.de/krfb/. They even have screen shots if you are interested. Looks realy nice. I wonder if it can also do vnc sessions started with http://www.sourcecodecorner.com/articles/vnc/linux.asp. Would be realy nice. It will certainly be a welcome addition. Too bad I am not seeing any such support coming from the gnome team. If you use XFree86 R4.2, you can use http://xf4vnc.sourceforge.net/. It lacks the shiny interface but it ends with similar usability. I wonder how these 2 compare when using kde... CBee btw: Michael, sorry, I intended to send it to the list but this damn list, not setting a proper reply address... ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
