Mark, Is the "Remote machine" connected to the Linux firewall via a wireless link?
Regards, Wez @ RealVNC Ltd. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Mark > Sent: 08 June 2005 13:16 > To: [email protected] > Subject: Screen freezing in VNC4.1.1 over SSH > > I have been having problems with sessions hanging when running VNC > over SSH. I will have a session open, and after some time find that > the screen has frozen. Refreshing the screen doesn't help, however if > I close the session I can open another one just fine (though it seems > to take a few seconds longer to reconnect than it did originally). > This happens in the following circumstances: > > * if I minimize the VNC session window for about 15 or more minutes, > the session always freezes immediately after I maximize (I have a > batch file printing the time continually and the time is current when > I maximise, but does not continue to update). If I minimise and then > maximise after a couple of minutes, the session does not freeze. If I > maximise between 2 and 15 minutes the session sometimes freezes > (almost always after 5 minutes). > * if the session is not minimised but just in the background, the > session usually freezes but after a more variable and longer length of > time. > * sometimes the session freezes when I am using it actively. Again, > length of time is variable. > > The setup I am using is as follows: > > VNC Client (RealVNC Free 4.1.1) on Win XP Pro > | > Linux firewall running NAT > | > ADSL Router running NAT > | > | > ADSL Router running NAT > | > Linux Firewall running NAT & OpenSSHd > | > Remote machine (RealVNC Free 4.1.1 server) on Win XP Pro > -session timeout set to 60000 seconds > > The only port open on the remote Linux firewall is 22, and I set up a > SSH tunnel from local client (with PuTTY) to the remote Linux > Firewall, which then forwards VNC traffic to the remote VNC server. > > I don't see any problem with the SSH session when the VNC session > hangs (nothing in the SSH log, SSH terminal session is fine). I have > also reproduced the problem connecting from different PCs. > > I do get an entry in the Windows event log of the VNC server > (connection reset by peer 10054), but this entry is logged after the > time session froze, so presumably it is a result of the freeze not the > cause? > > If I put the remote machine in front of the Linux firewall (ie just in > ADSL router NAT) and connect directly (ie no SSH tunnel) the > connection is stable and does not hang. > > Any assistance in fixing this would be most appreciated. > > thanks > > mark. > _______________________________________________ > 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
