Can't connect to vncserver running on Ubuntu Linux box

[John Aldrich]

Do you have the XP firewall running? If so, try putting in an exception for
the VNC Executable... even if it's not running, enable it, put in the
exception and disable it. There is anecdotal evidence that the XP firewall
can block things, even if it's not "enabled."

Also, any other firewall/antivirus/security software on the XP box?

-----Original Message-----
From: vnc-list-admin "at" realvnc.com [mailto:vnc-list-admin "at" realvnc.com]On
Behalf Of Kort, Eric
Sent: Monday, December 05, 2005 1:16 PM
To: vnc-list "at" realvnc.com
Subject: Can't connect to vncserver running on Ubuntu Linux box


I am running vncserver on my Ubuntu Linux box (fresh install, Breezy
Badger), and trying to connect to it from my windows XP box, but have
not been able to (I can connect to other linux and windows-based VNC
servers from this box on my network).  

I CAN connect to this server from the localhost.  From my windows box,
however, I do not even get a log-in prompt.  Vncviewer 3.x states
"Failed to connect to server" and vncviewer 4 (set to use only 3.3
protocol) states "unable to connect to host: Connection refused
(10061)".  I can find no trace of VNC errors in the system log.

Here are the responses to the troubleshooting steps:

>Can you "ping" the VNC Server from the Viewer machine?
YES, and vice-versa

>Are the Viewer and Server on the same LAN?
YES

>Are you sure the VNC Server is running?
YES.  telnet-ing my vncserver on port 5900 yields response of RFB
003.003

>Can you get to the VNC password prompt?
No.

>Is the VNC Server restricting connections?
No.

Can someone advise me what to try next?

Thank you,
-Eric Kort

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