Hi; I have taken Kevin Everets advice and borrowed a copy of "UNIX Network Programming" by Richard Stevens. However, the copy I have is the 1990 edition. It does cover the issues that I wanted to learn about in a manner I like -- moving from descriptions of what is happening to showing it in C or pseudo C. Is it worth buying the 1998 edition, if I am only trying to acquire a first iteration level of understanding? I plan to move onto Linux manuals later. In the edition I have, Stevens makes constant reference to the Berkely 4.3BSD UNIX system and AT&T's Unix System V. Which one of these UNIX systems would most closely resemble the network system used by Linux kernel 2.6? Or is Linux some of both? Regards Bill