Here is a link to assignment 1
Howto checkout mozilla code over an ssh tunneling
This in thanks in part to Mark.
Open up two terminals. The first one makes a tunnel to matrix. In terminal 1:
ssh -L 2401:cvs-mirror.mozilla.org:2401 -l cdolivei cdolivei@matrix
In terminal 2:
cvs -d :pserver:anonymous:anonymous@localhost:/cvsroot co mozilla/client.mk