NFS behind a firewall

[Ayman Haidar <haidara@geneseeurgentcare.com>]

Hello,

I was wondering how to setup NFS behind a firewall. I am trying to
access my office linux box which is behind a DSL router from home
where I have a cable modem.

the issue is I need to know what ports I need to open on the office
router so I can mount a folder from my linux box.

the other thing is I want to be able to route it through ssh to make
sure things are secure. I think it's not that hard once I know the ports.

I do have access to everything, and I run debian potato in the office,
debian sid on my laptop.

thanks

Ayman