Sometimes we are given access via ssh to nodes that do not have, for policy or technical reasons, access to the internet (i.e. they cannot make outbound connections). Depending on the policies, we may be able to open reverse SSH tunnels, so things are not so bad. Recently I discovered that OpenSSH comes with a SOCKS proxy server integrated. This is probably a well known feature of OpenSSH but I thought it was interesting to share how it can be used.
