$ vncserver 

Warning: bolivar:1 is not taken because of /tmp/.X1-lock
Remove this file if there is no X server bolivar:1

Warning: bolivar:2 is not taken because of /tmp/.X2-lock
Remove this file if there is no X server bolivar:2

New 'X' desktop is bolivar:3

Starting applications specified in /etc/X11/Xsession
Log file is /home/sprok/.vnc/bolivar:3.log
$ ps ax | grep vnc
13962 pts/0    R+     0:00 grep vnc