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I installed tigervnc-server package in server.

[root@localhost ~]# rpm -qa tigervnc-server
tigervnc-server-1.1.0-5.el6.i686

Created a vnc user and created vncpasswd also for that user.

[root@localhost ~]# useradd vnc
[root@localhost ~]# vncpasswd vnc
Password:
Verify:
[root@localhost ~]# 

In /etc/sysconfig/vncserver I changed these 2 lines

VNCSERVERS="2:vnc"
VNCSERVERARGS[2]="-geometry 800x600 -nolisten tcp -localhost"

After that I restarted the vncserver service

[root@localhost ~]# service vncserver restart
Shutting down VNC server: 2:vnc                            [  OK  ]
Starting VNC server: 2:vnc 
New 'localhost.localdomain:2 (vnc)' desktop is localhost.localdomain:2

Starting applications specified in /home/vnc/.vnc/xstartup
Log file is /home/vnc/.vnc/localhost.localdomain:2.log

                                                           [  OK  ]

Cleared iptables also.

[root@localhost ~]# iptables -F

While running vncviewer in client side I am getting this error

[root@client ~]# vncviewer 10.10.2.39:2

enter image description here

How to solve this error?

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up vote 2 down vote accepted

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]
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1  
Great... I just changed this line VNCSERVERARGS[2]="-geometry 800x600 -nolisten tcp -localhost" to this VNCSERVERARGS[2]="-geometry 800x600" now it's working fine. – max Mar 12 '13 at 13:25

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