UNIX Internals
The Magic Garden Explained - The Internals of UNIX System V, Release 4
Berny Goodheart & James Cox
ISBN# 013 098138 9

UNIX Shell Programming
UNIX Shell Programming (Revised Edition)
Stephen G. Kochan and Patrick H. Wood
ISBN# 0-672-48448-X

Apache Web Server
Apache Server Unleashed
Rich Bowen and Ken Coar
ISBN# 0-672-31808-3

Preparing to write the Solaris System Administration Exams
(Exams 310-009, and 310-010)
Exam Cram - Solaris 7 System Administrator
Darrell L. Ambro
ISBN# 1-57610-547-4

TCP/IP
TCP/IP Illustrated, Volume 1 - The Protocols
W. Richard Stevens
ISBN# 0-201-63346-9

Advanced UNIX programming
Advanced UNIX Programming
Marc J. Rochkind
ISBN# 0-13-011818-4