If you are trying to use SSH inside a debian-installer session, you might run into some problems…
With the installer from lenny,
sshwill complain about a missing
I couldn’t find this file anywhere on the media, it is missing.
You need a libz.so.1 from somewhere, so copy it to a USB stick or something.
Using the installer from sid, tring to
sshanywhere might result in the message “
You don't exist, go away!”
If you get this message, make sure to install libnss. (I only had to do this using the newt “install”, not with installgui.)