Access Linaro Forge Licence Server behind a firewall

In some scenarios, Linaro Forge Licence Server might be located behind a firewall. This is the case if you are accessing a license server hosted by Linaro. You might also be debugging a system that is not on the same network as the license server. In this case, you can use SSH forwarding to access the license server that is behind the firewall.

A local client license file is created or modified to specify localhost as the hostname parameter:

type=2
serial_number=1014
hostname=localhost
serverport=4252

Communication is then forwarded over the secure SSH connection to Linaro Forge Licence Server, which listens on port 4252.

This is an example of the command to use for setting up the SSH forwarding:

ssh -C -L 4252:server.physics.acme.edu:4242 login.physics.acme.edu

The -C switch is optional, and enables compression for communication over slow links.