How do I use SSH to create a secure tunnel for remote VNC access?

Published on Aug. 22, 2023, 12:18 p.m.

To use SSH to create a secure tunnel for remote VNC access, you can follow these general steps:

  1. Install and configure an SSH client on your local machine.
  2. Log in to the remote server using SSH.
  3. Forward the VNC port from the remote server to a local port on your machine using the SSH command with the -L option. For example, to forward the VNC port 5901 from the remote server to port 5901 on your local machine, you can use the following command:

ssh -L 5901:localhost:5901 remote_user@remote_host

This will create an encrypted SSH tunnel and forward all traffic on port 5901 (VNC) from the remote server to your local machine.
4. Connect to the VNC server using a VNC client, such as RealVNC or TightVNC, and specify “localhost:1” as the VNC server when prompted. The “1” refers to the VNC display number, which corresponds to the port number that was forwarded in the previous step.

For example, in RealVNC, you would enter “localhost:1” in the VNC Server field in the connection dialog.
5. Log in to the VNC server using your VNC password.

Once you have established the SSH tunnel and connected to the remote VNC server, you can use your VNC client to access the remote desktop environment securely. This allows you to access the remote desktop environment and perform tasks as if you were physically present at the remote machine.

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