RE: Ubuntu with Xvnc to :1 with no window manager at :0
On Wed, 16 May 2012, Long, Phillip GOSS wrote: Once again, I have to emphasize that I am *not* an expert, nor have I ever used Xvnc, so I'm just going by what I have ready over the years; unfortunately, I can't tell U off-hand where I happened to read these things, other than to say that it was most likely on the RealVNC website. I poked around on the RealVNC website a bit, and on the page http://kb.realvnc.com/questions/10/How+do+I+run+multiple+screens%7B47%7Dsessions+of+VNC%3F it says that there is an X server built into the vncserver. It also shows one case in which U want to have more than one X server (running one or more copies of vncserver). In fact, much to my surprise, it also shows that U can attach vncserver to an already-existing X server. I didn't know U could do that! Yes, that is another option but I think it is slower. vncserver is an X server, with its own display; U work with it by setting the DISPLAY environment variable to the appropriate value (:1, :2.0, :0.1, etc.), just like U do with X11. Right. I have been using it on Linux/UNIX systems for 15 years now. The thing I don't think I can do is run vncviewer on a Linux box that doesn't have the window manager running. Right? So I have to have a minimum of two X sessions going -- one in :1, say, and the other on :0, to be able to do what I want. Connecting remotely isn't an issue. It's when I'm at the desktop on touching the machine that has my vncserver :1 running in it. To see it I have to run vncviewer, and to do that I need a window manager. Maybe I could run Gnome in vncserver :1, and then use a lightweight window manager like ICEwm on :0. I do more work remotely than at the desktop. I do have a lot of memory and disk, though. The thing is I can't run two Gnome sessions at the same time. Now Ubuntu is using Unity and I don't know how that's going to work out. Mike ___ VNC-List mailing list VNC-List@realvnc.com To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Ubuntu with Xvnc to :1 with no window manager at :0
-Original Message- From: Mike Miller [mailto:mbmil...@gmail.com] On Behalf Of Mike Miller Sent: Tuesday, May 15, 2012 11:35 AM To: Long, Phillip GOSS Cc: VNC List Subject: RE: Ubuntu with Xvnc to :1 with no window manager at :0 On Mon, 14 May 2012, Long, Phillip GOSS wrote: On Wed, 25 Apr 2012, Mike Miller wrote: snip Thanks, Phillip. On my system, it seems that /etc/X11/xinit/xinitrc calls /etc/X11/Xsession and there is no ~/.xinitrc file. Suppose I make it so that /etc/X11/xinit/xinitrc doesn't start X11. I guess I would then see a console window after booting. Can I just run vncserver :1, say, from there, then run vncviewer from that console? It just seems like that would fail because I don't have a graphical interface. How can vncviewer run without a DISPLAY? By the way, I have been running Xvnc on :1 for years without any failures (that's RealVNC Free). It ran once for something like 500 days on Solaris. It's really the same on Ubuntu -- no failures -- but I happen to have the machine in a place where the power sometimes goes out and that has limited me to only about 200 days of uninterrupted uptime. Mike Mike: Once again, I have to emphasize that I am *not* an expert, nor have I ever used Xvnc, so I'm just going by what I have ready over the years; unfortunately, I can't tell U off-hand where I happened to read these things, other than to say that it was most likely on the RealVNC website. I poked around on the RealVNC website a bit, and on the page http://kb.realvnc.com/questions/10/How+do+I+run+multiple+screens%7B47%7D sessions+of+VNC%3F it says that there is an X server built into the vncserver. It also shows one case in which U want to have more than one X server (running one or more copies of vncserver). In fact, much to my surprise, it also shows that U can attach vncserver to an already-existing X server. I didn't know U could do that! vncserver is an X server, with its own display; U work with it by setting the DISPLAY environment variable to the appropriate value (:1, :2.0, :0.1, etc.), just like U do with X11. It will work with your default window manager, or U can use a different one (changed in ~/.vnc/.something-or-other). If U modify xinitrc, U would change it to launch vncserver instead of X; as a general rule, I try Really Hard not to change system-wide stuff, but in this case, I'm not sure how to implement Xvnc in user-mode. If my understanding is correct, your X server would then be running on display :0.0. Since this would be a system-wide change, all users on the system would experience this change. So long as they interact with the X server using their window manager (which everybody does), they probably wouldn't notice any change (any differences would probably mean that one X server or the other had a bug, or was making an alternate assumption about something). Running vncserver as your primary X server would have the advantage of allowing anybody who connected your machine to see your desktop, just like it works on MSWindows; of course, working like MS Windows is not always seen as an advantage! Thx, Phil Long Goss ... Innovation for Business NOTICE: This e-mail and any attachment(s) may contain confidential and proprietary information of Goss International Corporation and/or its subsidiaries and may be legally privileged. This e-mail is intended solely for the addressee. If you are not the addressee, dissemination, copying or other use of this e-mail or any of its content is strictly prohibited and may be unlawful. If you are not the intended recipient please inform the sender immediately and destroy the e-mail and any copies. All liability for viruses is excluded to the fullest extent permitted by law. Any views expressed in this message are those of the individual sender. No contract may be construed by this e-mail. ___ VNC-List mailing list VNC-List@realvnc.com To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Ubuntu with Xvnc to :1 with no window manager at :0
-Original Message- From: vnc-list-boun...@realvnc.com [mailto:vnc-list-boun...@realvnc.com] On Behalf Of Mike Miller Sent: Monday, April 30, 2012 11:03 AM To: VNC List Subject: Re: Ubuntu with Xvnc to :1 with no window manager at :0 snip So if anyone here knows about this... On Wed, 25 Apr 2012, Mike Miller wrote: Is it possible to boot Ubuntu, not load an X window manager and still run Xvnc on :1 for remote access? If I'm actually sitting at the machine, I have to load a window manager to be able to see vncviewer, I assume? Is that how it works? What I've been doing is using IceWM in Xvnc and exclusively accessing the system through that, but I have Gnome running all the time on :0, mostly doing nothing but taking up space. Mike Thanks. Mike Mike: I use Gnome, not Xvnc, on my desktop, and I'm by no means an expert, but my understanding is that Xvnc is an X server, and in general, U should only have one of those running. My guess is that Xvnc is your X server, and U're running IceWM as your window manager on :1. Probably, the X startup/login script (~/.xinitrc?) is launching Gnome (on the first available screen, perhaps?), and U need to remove or comment out those commands to conserve resources. U would also be able to run IceWM on :0 instead of :1. HTH! Thx, Phil Long Goss ... Innovation for Business NOTICE: This e-mail and any attachment(s) may contain confidential and proprietary information of Goss International Corporation and/or its subsidiaries and may be legally privileged. This e-mail is intended solely for the addressee. If you are not the addressee, dissemination, copying or other use of this e-mail or any of its content is strictly prohibited and may be unlawful. If you are not the intended recipient please inform the sender immediately and destroy the e-mail and any copies. All liability for viruses is excluded to the fullest extent permitted by law. Any views expressed in this message are those of the individual sender. No contract may be construed by this e-mail. ___ VNC-List mailing list VNC-List@realvnc.com To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Ubuntu with Xvnc to :1 with no window manager at :0
On Mon, 14 May 2012, Long, Phillip GOSS wrote: On Wed, 25 Apr 2012, Mike Miller wrote: Is it possible to boot Ubuntu, not load an X window manager and still run Xvnc on :1 for remote access? If I'm actually sitting at the machine, I have to load a window manager to be able to see vncviewer, I assume? Is that how it works? What I've been doing is using IceWM in Xvnc and exclusively accessing the system through that, but I have Gnome running all the time on :0, mostly doing nothing but taking up space. Mike: I use Gnome, not Xvnc, on my desktop, and I'm by no means an expert, but my understanding is that Xvnc is an X server, and in general, U should only have one of those running. My guess is that Xvnc is your X server, and U're running IceWM as your window manager on :1. Probably, the X startup/login script (~/.xinitrc?) is launching Gnome (on the first available screen, perhaps?), and U need to remove or comment out those commands to conserve resources. U would also be able to run IceWM on :0 instead of :1. Thanks, Phillip. On my system, it seems that /etc/X11/xinit/xinitrc calls /etc/X11/Xsession and there is no ~/.xinitrc file. Suppose I make it so that /etc/X11/xinit/xinitrc doesn't start X11. I guess I would then see a console window after booting. Can I just run vncserver :1, say, from there, then run vncviewer from that console? It just seems like that would fail because I don't have a graphical interface. How can vncviewer run without a DISPLAY? By the way, I have been running Xvnc on :1 for years without any failures (that's RealVNC Free). It ran once for something like 500 days on Solaris. It's really the same on Ubuntu -- no failures -- but I happen to have the machine in a place where the power sometimes goes out and that has limited me to only about 200 days of uninterrupted uptime. Mike ___ VNC-List mailing list VNC-List@realvnc.com To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Re: Ubuntu with Xvnc to :1 with no window manager at :0
By the way, I had no reply to this message except for the response from Linda Hawksworth of RealVNC Customer Support, but that turned out to have been a mistake (she didn't realize it was a list message and thought it was a support request) and she could not help me. So if anyone here knows about this... On Wed, 25 Apr 2012, Mike Miller wrote: Is it possible to boot Ubuntu, not load an X window manager and still run Xvnc on :1 for remote access? If I'm actually sitting at the machine, I have to load a window manager to be able to see vncviewer, I assume? Is that how it works? What I've been doing is using IceWM in Xvnc and exclusively accessing the system through that, but I have Gnome running all the time on :0, mostly doing nothing but taking up space. Mike Thanks. Mike ___ VNC-List mailing list VNC-List@realvnc.com To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Ubuntu with Xvnc to :1 with no window manager at :0
I'm using ... Xvnc Free Edition 4.1.1 I use vncserver :1 -localhost If I am not at the desktop, I connect via ssh via port forward using this script: begin script on next line--- #!/usr/bin/bash ssh -f -L 25901:127.0.0.1:5901 me@mybox sleep 10 vncviewer -Shared 127.0.0.1::25901 /dev/null ---end script on previous line-- Most ports on the network are blocked by a firewall, but ssh is open. Thanks for replying. I have to say, though, your questions seem generic and unrelated to my question. I wouldn't have thought any information would be needed to answer the question about what needs to be running on the system for VNC to work. For all of these scenarios (connection, network, etc.) isn't the answer the same about whether a window manager needs to be running on :0? Or maybe you are thinking about other ways I might use VNC to get what I want (e.g., connecting to :0). I'm definitely interested. Thanks. Mike On Wed, 25 Apr 2012, Linda Hawksworth wrote: HI Mike Please can you send as much information about your environment as possible (VNC Server and Viewer versions, Editions, OSs, etc). Please also send full details of your network configuration (network/firewall/antivirus/security software configuration). How are you connecting (locally/VPN/internet/3G)? How are you starting VNC Server? Please send the command line options or config file you are using. Regards Linda Hawksworth RealVNC Customer Support Please ensure you Reply to All and keep the subject line to ensure that your support ticket is appropriately tracked. -Original Message- From: vnc-list-boun...@realvnc.com [mailto:vnc-list-boun...@realvnc.com] On Behalf Of Mike Miller Sent: 25 April 2012 09:21 To: VNC List Subject: Ubuntu with Xvnc to :1 with no window manager at :0 Is it possible to boot Ubuntu, not load an X window manager and still run Xvnc on :1 for remote access? If I'm actually sitting at the machine, I have to load a window manager to be able to see vncviewer, I assume? Is that how it works? What I've been doing is using IceWM in Xvnc and exclusively accessing the system through that, but I have Gnome running all the time on :0, mostly doing nothing but taking up space. Mike ___ VNC-List mailing list VNC-List@realvnc.com To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list VNC-List@realvnc.com To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
