There are a number of places where you can find good information about Linux networking.
There are a wealth of Consultants available. A searchable listing can be found at http://www.linuxports.com/
Alan Cox, the current maintainer of the Linux kernel networking code maintains a world wide web page that contains highlights of current and new developments in linux Networking at: www.uk.linux.org.
There is a newsgroup in the Linux news hierarchy dedicated to networking and related matters, it is: comp.os.linux.networking
There is a mailing list to which you can subscribe where you may ask questions relating to Linux networking. To subscribe you should send a mail message:
To: majordomo@vger.rutgers.edu
Subject: anything at all
Message:
subscribe linux-net
Please remember when reporting any problem to include as much relevant detail about the problem as you can. Specifically you should specify the versions of software that you are using, especially the kernel version, the version of tools such as pppd/ or dip and the exact nature of the problem you are experiencing. This means taking note of the exact syntax of any error messages you receive and of any commands that you are issuing.
If you are after some basic tutorial information on tcp/ip networking generally, then I recommend you take a look at the following documents:
this document comes as both a text version and a postscript version.
this document comes as both a text version and a postscript version.
If you are after some more detailed information on tcp/ip networking then I highly recommend:
Internetworking 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 also highly 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 to probe further.
You might also try the comp.protocols.tcp-ip newsgroup.
An important source of specific technical information relating to the Internet and the tcp/ip suite of protocols are RFC's. RFC is an acronym for `Request For Comment' and is the standard means of submitting and documenting Internet protocol standards. There are many RFC repositories. Many of these sites are ftp sites and other 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 RFC's is at Nexor RFC database.