The UNIX Programming Environment

When You Can't Find Your UNIX System Administrator (What You Need to Know)

Unix Networking (Hayden Books Unix System Library)

Underground Guide to UNIX: Slightly Askew Advice from a UNIX Guru

The Design and Implementation of the 4.4BSD Operating System (Unix and Open Systems Series.)

Unix System Security: How to Protect Your Data and Prevent Intruders

UNIX(R) System Security: A Guide for Users and System Administrators

TCP/IP and NFS: Internetworking in a UNIX Environment

UNIX(R) System V Network Programming

UNIX Shell Programming, Revised Edition