On Thursday, June 6, 2002, at 03:44 AM, Beerse, Corni wrote: <snip> >> However I know that port 80 is open for sure and also port 21. Probably >> port 443 is also open. > > And are they free or are they in use? > What protocol is open? vnc needs tcp, not udp. >>
I understand that vnc uses tcp and not udp. As to whether the ports are in use. I am doing this testing on my own LAN. There are two machines: Win98SE and WINNT4.0SP5. In doing the test neither machine was running either a browser or an ftp task. So in that sense they were not in use. Is that what you meant? Thus I make the assumption that I should be able to use those ports since the only traffic on them would be the vnc packets. <snip> >> In the viewer I entered 192.168.100.127:-5820 as per the >> docn but the Win98SE keeps getting an GPF. > > Try (2^16 - 5820) or (2^32 - 5820) for portnumbers. > You have a working, not-firewall connection: try this port change on > this > machine to see if your setup works from the vnc site. > Interestingly enough when I run VNC on the 98SE either as an app or as a service and then check the properties I see that the display number shown is 4,294,961,476. This turns out to be 2^32 - 5819. Curious. However no matter what I enter at the listener (on the NT box) I get a GPF on the 98SE machine. I havn't tried the other way (NT as vnc and 98Se asviewer) because the world in which I will have to live uses 98SE. So I need to get it working that way round. >> >> Now I'm a Mac programmer who is even less than a white belt >> on Windows >> so I would really appreciate some help here on how to solve the >> problem - namely connecting to a Win98SE box that is behind a >> firewall with only ports 80, 21, and 443 available to me. >> > > Bad luck message: if those ports are the only open ports, they are most > likely to be in use: > port 21: ftp > port 80: http > port 443: https > See my comments above when I am testing on my LAN. Nothing else is using those ports. No browser; no ftp. > From my point of view, you can best use port 21 as it is useless without > port 20 since ftp uses both ports, one for controll (21) and one for > data > (20). > > Debugging a vnc connection from the viewer side: telnet to the machine > at > the proper port (in netscape: telnet://machine:port/) should give a "RFB > xxx.xxx" message. Start doing this at the vncserver machine: > telnet://localhost:port/ or telnet://127.0.0.1:21/ then, on the same > machine, use the real IP address. > I'll give this a try. But I may have to end up reading the source code to try and figure out what is or is not happening. respect... Peter _______________________________________________ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
