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Close VNC connection

Close VNC connection (normal)

Type vncserver –kill :N to close a server, where N is the server's number, e.g. compute:20 in the picture below.

VNC

Close VNC connection (errors)

Sometimes, for some reason, it is not possible to use vncserver –kill to shut down the VNC connection. You might get an error like this:

user@compute ~]$     /usr/bin/vncserver -kill :6 
Killing Xvnc process ID 20730
Xvnc seems to be deadlocked.  Kill the process manually and then re-run
    /usr/bin/vncserver -kill :6
to clean up the socket files.

In that case, you must killer the VNC process manually. To do this find the process id (PID) of the VNC process. You can see the PID by calling vncserver -list, which list your active VNC sessions, the session number, and the corresponding PID. To kill the process, write the following in your terminal:

kill -9 PID
Where "PID" is the PID number.