Question: Where can I read the procedure to login in my server via the net?

So far all my servers were disconnected. We want to connect them to the net
now. Before starting I wanted to check if the procedure I have in mind is
I was thinking of:
- Installing the internet connection with INETCFG, then
- Install a client on a station with remote access: this is the part that is
most unclear.
I looked at the client install and it lists the existing internet dial
ups. Where do I put my network IP number? What if I have a DSL connexion
with a router?

Thanks for the enlightment.