VNC Server Installation on CentOS 6.5
Author: Srijan Kishore
Last edited 30/Jun/2014
This guide explains how to configure VNC-server in CentOS 6.5 server. It is a very convinient way of administrating the CentOS 6.5 with the help of GUI(Graphics User Interface). The GUI can be access any where with the help of the VNC-client on any OS. The basic condition is that the connecting OS must have VNC-clients installed in it.
1 Preliminary Note
In my case I have a fresh installed CentOS6.5 Server on which I will be installing the VNC-server so that I can access the CentOS server with GUI. You can follow the guide for the basic installation of the CentOS server till Chapter 7. Please don't install the Development Tools. All of the cases are same as per the guide. My details are as follows:
IP address 192.168.0.100
DNS 220.127.116.11 18.104.22.168
- Remote GUI administration makes work easy & convenient.
- Clipboard sharing between host CentOS server & VNC-client machine.
- GUI tools can be installed on the host CentOS server to make the administration more powerful
- Host CentOS server can be administered through any OS having the VNC-client installed.
- More reliable over ssh graphics.
- More reliable over RDP connections.
2 InstallationI am logged in my system with root, & now I will be installing the VNC-server.
yum groupinstall DesktopFurther install
yum install gnome-core xfce4 firefox
yum install tigervnc-server
Now make the service on after every reboot
chkconfig vncserver on
3 Adding VNC userIn my case I am using user=srijan it will differ in your case. You can use any username for the same.
Now I will assign the vncpassword for the user with the user I just created before as:
su - srijan
[root@server1 ~]# su - srijan
[srijan@server1 ~]$ vncpasswd
Now I will make the configuration file for the vncserver by creating file as follows:
Give the entries like this.
Here your port comes to be 5901 & 1024x768 resolution for the VNC client, you can choose resolution of your own choice.
Now I will restart the VNC server service as root user:
service vncserver restart
[root@server1 ~]# service vncserver restart Shutting down VNC server: [ OK ] Starting VNC server: 1:srijan xauth: creating new authority file /home/srijan/.Xauthority New 'server1.example.com:1 (srijan)' desktop is server1.example.com:1 Creating default startup script /home/srijan/.vnc/xstartup Starting applications specified in /home/srijan/.vnc/xstartup Log file is /home/srijan/.vnc/server1.example.com:1.log [ OK ] [root@server1 ~]#
Now to make the changes affective I will kill VNC & do some more configurations as follows:
Open the file comment the line #twm & & add the line exec gnome-session as follows:
#!/bin/sh [ -r /etc/sysconfig/i18n ] && . /etc/sysconfig/i18n export LANG export SYSFONT vncconfig -iconic & unset SESSION_MANAGER unset DBUS_SESSION_BUS_ADDRESS OS=`uname -s` if [ $OS = 'Linux' ]; then case "$WINDOWMANAGER" in *gnome*) if [ -e /etc/SuSE-release ]; then PATH=$PATH:/opt/gnome/bin export PATH fi ;; esac fi if [ -x /etc/X11/xinit/xinitrc ]; then exec /etc/X11/xinit/xinitrc fi if [ -f /etc/X11/xinit/xinitrc ]; then exec sh /etc/X11/xinit/xinitrc fi [ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources xsetroot -solid grey xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" & #twm & exec gnome-session &
& Finally reboot the machine.
4 VNC Client
At client end my OS is Ubuntu14.04 with vino installed on my client machine. Otherwise you can install any VNC-client of your choice. In case other OS say windows-7 you can install Realvnc-client or any other of your choice.
Again start the vncservice with the user srijan:
su - srijan
vncserver[root@server1 ~]# su - srijan
[srijan@server1 ~]$ vncserver
New 'server1.example.com:1 (srijan)' desktop is server1.example.com:1
Starting applications specified in /home/srijan/.vnc/xstartup
Log file is /home/srijan/.vnc/server1.example.com:1.log
Now I am going to connect with the VNC server through my VNC-client
It will prompt for the password as follows:
Put yourvncpassword the same which you gave at the time of adding the user srijan.
Now you are connected with the CentOS6.5 Server. In case you want to add more users to access the vnc-console you need to add the user, assign the vncpassword for the new-user as mentioned above & append the entry in the file as:
vi /etc/sysconfig/vncserversFor instance I am using user kishore, entries will be like this
VNCSERVERS="2:kishore" VNCSERVERARGS="-geometry 1024x768"
This will enable user kishore to get the access to the VNC-server with the port 5902. In the same way you can add the root user also.
Congrats you have configured the VNC-server successfully :)