How to Install VNC on Linux(CentOS ) Server ?

Check if the VNC server is already installed or not

rpm -qa vnc-server

If you get an output as “package vnc-server is not installed” you can begin with the installation.
Install VNC server with the following Command

yum install vnc-server

Now check if VNC client is installed on the server use the command

rpm -qa vnc

Install it if needed by using the following command

yum install vnc

Now lets install the Gnome Desktop and requirements by executing the command

IF you are using CentOS 5 ::-

yum groupinstall “GNOME Desktop Environment”

IF you are using CentOS 6 ::-

yum groupinstall Desktop

On CentOS 5 you may get error regarding “ if so, you may use below steps to overcome by using

yum –exclude=nautilus-sendto groupinstall “GNOME Desktop Environment”

Now lets create user to access the server

useradd test

To allow its access by configuring the configuration file /etc/sysconfig/vncservers with the following parameters

VNCSERVERARGS[1]=”-geometry 800×600?

Now lets set password for the user

su – test


If you wish to use root user to be accessed using VNC use following setting in /etc/sysconfig/vncservers

VNCSERVERARGS[1]=”-geometry 800×600?

As root execute




Check  the port on which the service is functioning with the command

ps -faux  | grep vnc



To start VNC server issue command

vncserver -kill :5

To start VNC server issue command

vncserver :5

Now you can access the server graphically as illustrated below



You will get a prompt as



On connecting you will get message as below





Vishwajit Kale

Vishwajit Kale blazed onto the digital marketing scene back in 2015 and is the digital marketing strategist of Hostripples, a company that aims to provide affordable web hosting solutions. Vishwajit is experienced in digital and content marketing along with SEO. He's fond of writing technology blogs, traveling and reading.