How To Install VNC Server On Ubuntu 14.04
How To Install VNC Server On Ubuntu 14.04
Version 1.0
Last edited 11/Jun/2014
This guide explains the installation and configuration of a VNC server on Ubuntu 14.04 server. I use a server here to show you a ay to have a remote desktop on a root server in a datacenter. The same steps will work for Ubuntu desktops as well.VNC is a very convinient way of administrating the Ubuntu 14.04 desktops remotely. The GUI can be accessed from anywhere over the internet or local network with a VNC client on any OS. The only requirement is that the connecting OS has a VNC-client installed on it.
1 Preliminary Note
In my case I have a fresh installed Ubuntu14.04 server in a datacenter (root server) were I will install the VNC server so that I can access the Ubuntu Gnome GUI remotely. If you do. In case that you havent a Ubuntu minimal installation yet, follow this guide for the basic installation of the Ubuntu server till Chapter 11. All of the cases are same as per the guide. My network details are as follows:
IP address 192.168.0.100
Gateway 192.168.0.1
DNS 8.8.8.8 8.8.4.4
Hostname server1.example.com
VNC-server benefits
- Remote GUI administration makes work easy & convenient.
- Clipboard sharing between host Ubuntu server & VNC-client machine.
- GUI tools can be installed on the host Ubuntu server to make the administration more powerful
- Host Ubuntu server can be administered through any OS having the VNC-client installed.
- More reliable and faster then running a X-Server over SSH.
- More reliable then RDP connections.
2 Installation
I am logged in my system as root user on the shell (e.g. by ssh). Now I will install the VNC-server.apt-get install gnome-core xfce4 firefox
apt-get install vnc4server
Please make sure that you are using only vnc-server & no other VNC-server are installed as this could give errors in future mostly that clipboard sharing between the host Ubuntu Server & vnc-client machine. You can check it as follows:
root@vboxtest ~ # dpkg -l | grep vnc
ii vnc4server 4.1.1+xorg4.3.0-37ubuntu5 amd64 Virtual network computing server software
root@vboxtest ~ #
3 Adding VNC user
In my case I am using user=srijan it will differ in your case. You can use any username for the same.adduser srijan
root@server1:~# adduser srijan
Adding user `srijan' ...
Adding new group `srijan' (1001) ...
Adding new group `srijan' (1001) ...
Adding new user `srijan' (1001) with group `srijan' ...
Creating home directory `/home/srijan' ...
Copying files from `/etc/skel' ...
Enter new UNIX password: <--yourpassword
Retype new UNIX password: <--yourpassword
passwd: password updated successfully
Changing the user information for srijan
Enter the new value, or press ENTER for the default
Full Name []: <--ENTER
Room Number []: <--ENTER
Work Phone []: <--ENTER
Home Phone []: <--ENTER
Other []: <--ENTER
Is the information correct? [Y/n] <--ENTER
Further we need to start the vncserver with the user, for this use:
su - srijan
vncserver
It will show this on the prompt:
srijan@server1:~$ vncserver You will require a password to access your desktops. Password:<--Put your VNC password Verify:<--Put your VNC password Password too long - only the first 8 characters will be used xauth: file /home/srijan/.Xauthority does not exist New 'server1:1 (srijan)' desktop is server1:1 Creating default startup script /home/srijan/.vnc/xstartup Starting applications specified in /home/srijan/.vnc/xstartup Log file is /home/srijan/.vnc/server1:1.log srijan@server1:~$
Now I am going to make backup of the original file & then make the configuration as follows:
cp ~/.vnc/xstartup ~/.vnc/xstartup.bak
> ~/.vnc/xstartup
vi ~/.vnc/xstartup
#!/bin/sh unset SESSION_MANAGER unset DBUS_SESSION_BUS_ADDRESS startxfce4 & [ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup [ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources xsetroot -solid grey vncconfig -iconic &
It will have some issues with the gnome-vnc session so please kill the present vnc session as follows:
vncserver -kill :1
Further I will make the startup script for the vncserver like this:
su
vi /etc/init.d/vncserver
#!/bin/bash
unset VNCSERVERARGS
VNCSERVERS=""
[ -f /etc/vncserver/vncservers.conf ] && . /etc/vncserver/vncservers.conf
prog=$"VNC server"
start() {
. /lib/lsb/init-functions
REQ_USER=$2
echo -n $"Starting $prog: "
ulimit -S -c 0 >/dev/null 2>&1
RETVAL=0
for display in ${VNCSERVERS}
do
export USER="${display##*:}"
if test -z "${REQ_USER}" -o "${REQ_USER}" == ${USER} ; then
echo -n "${display} "
unset BASH_ENV ENV
DISP="${display%%:*}"
export VNCUSERARGS="${VNCSERVERARGS[${DISP}]}"
su ${USER} -c "cd ~${USER} && [ -f .vnc/passwd ] && vncserver :${DISP} ${VNCUSERARGS}"
fi
done
}
stop() {
. /lib/lsb/init-functions
REQ_USER=$2
echo -n $"Shutting down VNCServer: "
for display in ${VNCSERVERS}
do
export USER="${display##*:}"
if test -z "${REQ_USER}" -o "${REQ_USER}" == ${USER} ; then
echo -n "${display} "
unset BASH_ENV ENV
export USER="${display##*:}"
su ${USER} -c "vncserver -kill :${display%%:*}" >/dev/null 2>&1
fi
done
echo -e "\n"
echo "VNCServer Stopped"
}
case "$1" in
start)
start $@
;;
stop)
stop $@
;;
restart|reload)
stop $@
sleep 3
start $@
;;
condrestart)
if [ -f /var/lock/subsys/vncserver ]; then
stop $@
sleep 3
start $@
fi
;;
status)
status Xvnc
;;
*)
echo $"Usage: $0 {start|stop|restart|condrestart|status}"
exit 1
esac