Unix Network Programming, Volume 1: The Sockets Networking API (3rd Edition)
UNIX Network Programming: Networking APIs: Sockets and XTI; Volume 1
Advanced Programming in the UNIX Environment, 3rd Edition
TCP/IP Illustrated: The Implementation, Vol. 2
TCP/IP Illustrated: v. 3: TCP for Transactions, HTTP, NNTP and the Unix Domain Protocols (Addison-Wesley Professional Computing Series)
UNIX Network Programming
The Linux Programming Interface: A Linux and UNIX System Programming Handbook
TCP/IP Illustrated, Vol. 1: The Protocols (Addison-Wesley Professional Computing Series)
The Unix Programming Environment (Prentice-Hall Software Series)
Programming with POSIX Threads