Installing VNC on instance

Install GNOME Desktop Environment (since my image did not have desktop)

• To install GNOME desktop environment, login to your instance using SSH and enter th following command: 

• # yum -y groupinstall "GNOME Desktop"

Installing VNC server

• Next we need to install VNC server:
• #yum -y install tigervnc-server

Configuring VNC server

• TigerVNC configuration file should be copied to its desired location:
• # cp /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver@:1.service
• Edit the VNC server configuration file "/etc/systemd/system/vncserver@:1.service" using any editor:
• #nano /etc/systemd/system/vncserver@:1.service 
• Replace the following lines of the file
• ` ExecStart=/sbin/runuser -l <USER> -c "/usr/bin/vncserver %i" `
• ` PIDFile=/home/<USER>/.vnc/%H%i.pid `

• with:
• ` ExecStart=/sbin/runuser -l root -c "/usr/bin/vncserver %i" `
• ` PIDFile=/root/.vnc/%H%i.pid `

• Use following command to create a file /etc/sysconfig/desktop with some contents. If you won't do this you will get grey screen upon connecting to VNC:
• #echo 'PREFERRED="$(type -p gnome-session)"' >> /etc/sysconfig/desktop 
• Set the password for VNC user:
• # vncpasswd

Configuration done!

To enable:

• #systemctl enable vncserver@:1.service && systemctl start vncserver@:1.service

VNC CLient

• Download any VNC client to connect to the VNC server:
• #yum install tigervnc 

• Enter your servers IP, root username & password. The default port for the VNC is 5901.