In the diffusion configuration manual it is stated that:

If you want to move the standard (administrative) sshd to a different port to make Phabricator repository URIs cleaner, this section has some tips.
This is optional, and it is normally easier to do this by putting a load balancer in front of Phabricator and having it accept TCP traffic on port 22 and forward it to some other port.

Could anyone expand on how this load balancing is done? Which software can I use?
In the end the goal is really to say: connections to port 22 as ssh user git to domain phab.mydomain.com should be forwarded to port 2222.

How can I do this? Are there any guides out there I have missed or could someone give some pointers as to how this is done?

Thanks, Paulo