xdmcp and "X terminals"

[Hugo van der Merwe]

I want to set up an old Pentium 120 as an X terminal, to log in remotely
on my desktop. I have read some documentation, and figured out that one
of the ?dm packages does the serving, but I cannot figure out what to do
on the client to make it ask for a login with XDMCP. Can anyone point me
in the direction of a package or some docs?

Thanks,
Hugo van der Merwe