If you are after some basic tutorial information on tcp/ip networking, then I recommend you take a look at the following documents:
If you are after some more detailed information on tcp/ip networking, then I highly recommend:
"Inter networking with TCP/IP, Volume 1: Principles, Protocols and Architecture, by Douglas E. Comer, ISBN 0-13-227836-7, Prentice Hall publications, Third Edition, 1995."
If you are wanting to learn about how to write network applications in a Unix compatible environment, then I recommend:
"Unix Network Programming, by W. Richard Stevens, ISBN 0-13-949876-1, Prentice Hall Publications, 1990."
A second edition of this book is appearing on the bookshelves. The new book is made up of three volumes. Check Prenice-Hall's web site for further details.
You might also try the comp.protocols.tcp-ip newsgroup.
RFCs are an important source of specific technical information relating to the Internet and the tcp/ip suite of protocols. RFC is an acronym for `Request For Comment' and it is the standard means of submitting and documenting Internet protocol standards. There are many RFC repositories. Many of these sites are ftp sites. Others provide World Wide Web access (with an associated search engine) that allows you to search the RFC database for particular keywords.
One possible source for RFCs is at Nexor RFC database. Was this section helpful? Why not Donate $2.50?