Configure VNC Server on Ubuntu

Parth Vijay

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Oct 30, 2021

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Install Tigervnc server on your server:

sudo apt install xserver-xorg-core
sudo apt install tigervnc-standalone-server tigervnc-common tigervnc-xorg-extension

If necessary(ubuntu-desktop):

sudo apt-get install — reinstall ubuntu-desktop gnome-panel gnome-settings-daemon metacity nautilus gnome-terminal

Create a VNC user:

sudo useradd -m <username>
sudo passwd <username>
sudo su <username>

Set VNC Password for new user:

vncpasswd

Configuring Ubuntu Desktop environment to use with VNC:

vim ~/.vnc/xstartup    #!/bin/sh
    [ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
    [ -r $HOME/.Xresources ] && xrdb $HOME/.Xresourcessudo chmod 755 xstartup

Run VNC Server using command:

vncserver :1 -localhost no -geometry 1024x768 -depth 32
vncserver :2 -localhost no -geometry 1024x768 -depth 32

List VNC Server:

vncserver -list

Stop TigerVNC server:

vncserver -kill :1
vncserver -kill :2
vncserver -kill :* (Kill all VNC Server)

Create /etc/vnc/xstartup, edit the file, make executable. This will create the typical Ubuntu desktop.

sudo mkdir /etc/vnc
cd /etc/vnc
sudo vim xstartup    #!/bin/sh    test x”$SHELL” = x”” && SHELL=/bin/bash
    test x”$1" = x”” && set — default
    vncconfig -iconic &
    “$SHELL” -l << EOF
    export XDG_SESSION_TYPE=x11
    export GNOME_SHELL_SESSION_MODE=ubuntu
    dbus-launch — exit-with-session gnome-session — session=ubuntu
    EOF
    vncserver -kill $DISPLAYsudo chmod 755 xstartup

Create service file for VNC server:

sudo vim /etc/systemd/system/vncserver@.service[Unit]
Description=Start TigerVNC server at startup
After=syslog.target network.target[Service]
Type=simple
User=USERNAME
PAMName=login
PIDFile=/home/USERNAME/.vnc/%H:%i.pid
ExecStartPre=/usr/bin/vncserver -kill :%i > /dev/null 2>&1
ExecStart=/usr/bin/vncserver -fg -depth 24 -geometry 1920x1200 -localhost no :%i
ExecStop=/usr/bin/vncserver -kill :%i[Install]
WantedBy=multi-user.target

Start the vnc service:

sudo systemctl daemon-reload
sudo systemctl enable vncserver@1.service
sudo systemctl start vncserver@1
sudo systemctl start vncserver@2
sudo systemctl status vncserver@1

Connecting with a VNC client:

sudo apt install tigervnc-viewer
vncviewer <VNCSERVER-IP>:<PORT>
vncviewer 192.1681.82:5901
vncviewer 192.1681.82:5902
vncviewer 192.1681.82:1
vncviewer 192.1681.82:2