VNC Ports To Open in Linux and Windows

Accessing a remote desktop is a necessity for many users, and Virtual Network Computing (VNC) makes this process seamless. If you’re searching for a guide to configure VNC ports on Linux or Windows, this tutorial will walk you through the steps to open VNC ports and enable remote desktop access.

What is VNC?

Virtual Network Computing (VNC) is a desktop-sharing system that allows you to control another computer remotely. It’s especially useful for accessing files or applications on systems located far from your current location. VNC requires:

• A TCP/IP connection

• A VNC server

• A VNC viewer

Default VNC Ports

• 5900: The default port for VNC connections

• 5800: The default port for the VNC web interface

To use a custom display number, calculate the port number by adding it to 5900. For example:

• Display number 2 = Port 5902

Steps to Open VNC Ports

1. On Linux

   Using Port Forwarding in the Router

   • Access your Router’s Web Interface.

   • Go to the Port Forwarding section.

   • Create a new rule by specifying:

     • Source and Destination Port: TCP 5900

     • Destination Address: The local machine’s IP

   • Save the rule and test if the port is listening.

   Using Firewall Rules

   • Add a rule to your firewall to allow traffic on TCP 5900.

   • Verify the rule is active and allows remote access.

2. On Windows

   To open VNC ports on Windows, you will need Group Policy Management Tools, which are part of the Remote Server Administration Tools (RSAT) available from Microsoft.

   Steps:

   • Open Group Policy Management Editor.

   • Navigate to Windows Firewall with Advanced Security.

   • Edit an existing policy or create a new one using the Group Policy Management Tool.

   • Go to Inbound Rules and start the New Inbound Rule Wizard.

   • Select Port and click Next.

   • Choose TCP and specify 5900 under Specific Local Ports.

   • Select Allow the connection and click Next.

   • Choose a profile: Domain, Private, or Public, then click Next.

   • Provide a Name and an optional Description.

   • Click Finish.

Ensure the Group Policy Object is applied to the correct computers using the Group Policy Management Tool.

Conclusion

VNC simplifies remote desktop access across systems, allowing users to control and retrieve files effortlessly. Configuring VNC ports ensures seamless communication between devices. The default ports 5900 and 5800 work for most setups, but you can configure custom ports if needed.

Follow the steps in this guide to configure VNC ports on Linux or Windows systems. If you encounter any challenges, the iDatam Tutorials Team is here to assist you with expert guidance and solutions.