How to Install and Configure VNC Server on CentOS 7

To install and configure VNC Server on CentOS 7, follow these steps:

Step 1 : First, ensure your system packages are up to date by running the following command:

sudo yum update -y

Step 2 : Install the Extra Packages for Enterprise Linux (EPEL) repository:

sudo yum install epel-release -y

Step 3 : Install the GNOME desktop environment:

sudo yum groupinstall "GNOME Desktop"

Step 4 : Install the TigerVNC server package:

sudo yum install tigervnc-server

Step 5 : Set up the VNC password for the user by running the following command and following the prompts:

vncpasswd

Step 6 : Edit the VNC server configuration file for systemd service:

cp /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver@.service
sudo nano /etc/systemd/system/vncserver@.service

Replace <USER> with the actual user name:

Save and exit the file.

Step 7 : Reload the systemd manager configuration to apply the changes:

sudo systemctl daemon-reload

Step 8 : Start the VNC server service for display :1:

sudo systemctl start vncserver@:1.service

Step 9 : Enable the VNC server service to start at boot:

sudo systemctl enable vncserver@:1.service

Step 10 : Check the status of the VNC server service to ensure it is running correctly:

sudo systemctl status vncserver@:1.service

Step 11 : If you are using a firewall, allow VNC traffic through the firewall:

sudo firewall-cmd --permanent --add-service=vnc-server
sudo firewall-cmd --reload

Step 12 : Connect to your VNC server using a VNC viewer application. If prompted about an unencrypted connection, proceed by clicking "Continue".

Step 13 : Log in using the VNC password you set earlier.

Step 14 : Access Your Desktop Environment

Congratulations! You have successfully installed and configured VNC Server on CentOS 7.