> I've bought two books on UNIX (UNIX for Dummies & UNIX Power Tools) but
> neither cover such areas as creation of accounts, setting TCP/IP addresses,
> setting and use of SendMail, etc.  I would really appreciate it if someone
> would recommend books, web sites or other resources that cover these and
> other such system admin topics.

Call up O'Reilly and Associates and order one of everything ;-).

Seriously, I have found several of the O'Reilly Nutshell books immensely
valuable.  Check out www.ora.com to see what they have available.  You'll
definitely want the sendmail and "administering TCP/IP" books, at the very
least.