Configuring VNC Server on Oracle Linux 6.5

Step:-1

Stop the iptables service:
# service iptables stop
service ip6tables stop

Stop the iptables service from starting when you restart the server:
# chkconfig iptables off
chkconfig ip6tables off


Step:-2
Disabling SELinux

To disable SELinux, 

configure SELINUX=disabled in /etc/selinux/config

Step:-3
Install the VNC Server.
# yum install tigervnc-server

Step:-4
Edit the "/etc/sysconfig/vncservers" file to configure the required displays. 

VNCSERVERS="2:root"
VNCSERVERARGS[2]="-geometry 1280x1024

Step:-5
Set the VNC password for any users defined in the "/etc/sysconfig/vncservers" file.
# vncpasswd
Password:

Verify:

Step:-6
Enable the "vncserver" service for autostart and start the service.

# chkconfig vncserver on
# service vncserver start

You should now be able to use a VNC viewer to connect to system using the display numbers and passwords defined.
Step:-7
Use the following commands to stop the service and disable autostart.

# service vncserver stop

# chkconfig vncserver off