Ubuntu to Ubuntu VNC over SSH tunnel

Question

I have a Linux Ubuntu desktop at home, ssh enabled, vnc server installed, router rule configured. It all works, and at home I can connect via the local network from my Mac. From the outside I can login via ssh.

I've configured putty as follows:

• session: host name and port number
• connection > ssh > tunnel: forwarded ports: L5900|192.168.0.23
• the local address is: 192.168.1.45

When I make the connection I can login to the remote machine.

Then I open Remote Desktop Viewer.

• I click connect
• protocol: vnc
• host: ?
• use host as ssh tunnel: ?

I don't know what to use for the last two options. Which ip-addresses should I use?

Answer 1

SSH forwarding - you're forwarding from the host you have SSHed into, to the same host:

• L5900|localhost:5900

VNC viewer:

• host: localhost
• "use host as ssh tunnel" is not needed, as you're doing that step (SSH forwarding) manually

Answer 2

You should point your remote desktop viewer to the local address and local port number that you've chosen to bind to.