If your network doesn't allow connections into the default VNC port 5901, you can tunnel it through SSH.

You can now copy that key (to the non-standard port configured SSH server) with something like: ssh-copy-id NAME Where NAME is the human-readable name given to the server in the configuration file.

Once ssh is running on a non-standard port, connection attempts to the system will fail with messages such as these: ...

Before initiating an SSH connection, you need to gather some vital information: the IP address or hostname of the Linux server you're connecting to, the port number, and your username. Open PuTTY and ...