Ubuntu: VNC Suddenly stops receiving Connections


I have a fit PC that essentially runs just a subversion server and as a test server for web applications. I upgraded a while back to 10.04 LTS and no issues. I don't have any keyboard or monitor installed on it, I just access the desktop through VNC, and while a little slow, it works perfectly fine.

Suddenly, today, I'm having an issue accessing Subversion. I tried to VNC to the machine, but it's refusing connections.

I've SSH into the server and reboot, but still no dice. I can manage OK (usually) on my own with the desktop, but I don't use the terminal very often, so I'm kind of stuck now and hoping someone has an idea...

I can confirm that the VNC Server is being started at startup. I run netstat and can see the following:

(Not all processes could be identified, non-owned process info will not be shown, you would have to be root to see it all.)

Active Internet connections (only servers)  Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name  tcp        0      0  *               LISTEN      4261/Xtightvnc    tcp        0      0   *               LISTEN      -                 tcp        0      0  *               LISTEN      -                 tcp        0      0  *               LISTEN      4261/Xtightvnc    tcp        0      0    *               LISTEN      -                 tcp        0      0    *               LISTEN      -                 tcp        0      0 *               LISTEN      -                 tcp        0      0 *               LISTEN      -                 tcp6       0      0 :::80                   :::*                    LISTEN      -                 tcp6       0      0 :::6000                 :::*                    LISTEN      -                 tcp6       0      0 :::22                   :::*                    LISTEN      -                 tcp6       0      0 ::1:631                 :::*                    LISTEN      -                 

Which I presume to mean VNC is listening to port 5901.

Don't know what else to do from here. Any help would be appreciated.


OK, so I seem to have resolved this. The Subversion error was indicating a lack of disk space, which made no sense because I couldn't figure out where all the space was going.

Turns out there was a hidden file that was 110GB. The file was .xsession-errors and was FILLED with lines like such:

11/01/2012 07:38:23 AM Authentication deferred - ignoring client message

It had been outputting about 13000+ per SECOND. I cleared the file and rebooted and subversion came back to life as did VNC.

While I haven't solved WHY this happened, I am at least temporarily, able to work.

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