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Configuring VNC Server on Linux 6.3

Posted by Kashif Manzoor on December 10th, 2013

This method applies to RHEL; let’s first install the VNC Server.

Through yum command

# yum install tigervnc-server


Through RPM command

First, locate and mount your RHEL 6.3 install media.

[root@oraerp ~]# cd “/media/RHEL_6.3 x86_64 Disc 1/Packages”

[root@oraerp Packages]# pwd

/media/RHEL_6.3 x86_64 Disc 1/Packages


Install following rpm packages

rpm -ivh xorg-x11-fonts-misc-7.2-9.1.el6.noarch.rpm

rpm –ivh tigervnc-server-1.0.90-0.17.20110314svn4359.el6.x86_64.rpm


Now lets edit the vncservers file to configure display


We can assign numbers to VNC for display like “:2” and “:3”.


In vncservers file we will find “display:user” pairs as defined on a single line.

VNCSERVERS=”2:root 3:oracle”

VNCSERVERARGS[2]=”-geometry 800×600 -nolisten tcp -localhost”

VNCSERVERARGS[3]=”-geometry 800×600″



After this we will set the VNC password for users defined in the “/etc/sysconfig/vncservers” file.

# vncpasswd




Lets switch to oracle user and set the password

# su – oracle

$ vncpasswd



$ exit



After setting up password, will enable the “vncserver” service for autostart and then start the service.

# chkconfig vncserver on

# service vncserver start


Our setup is over 🙂 now we can use a VNC viewer to connect to server by using the display numbers and passwords defined in our setup.

Updated on 18-01-2014

Faced issue on Oracle Linux 6.4, after configuring vncserver properly was not able to connect…. after research were able to fix the issue…… here is what i did:

Linux Firewall was stopping to connect so i just disabled through this command service iptables stop

[root]# service vncserver status
Xvnc (pid 4370 4174) is running…
[root@]# service iptables stop
iptables: Flushing firewall rules: [ OK ]
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Unloading modules: [ OK ]

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