vnc viewer error: unable connect to socket: Connection refused (111)

Your server is only listening on the loopback address localhost.localdomain:2. Try launching it with the server's IP address specified explicitly:

vncserver -interface [address]

Also you might want to try this option:

-localhost no

The command that works for me is:

vncserver -localhost no -geometry 800x600 -depth 24

The idea is to have vncserver listen on the network interface, rather than just the loopback interface (lo).