Published: October 1992, reprinted March 1993 with minor corrections.
Authors: Paul Albitz and Cricket Liu
Publisher: O'Reilly & Associates
ISBN: 1-56592-010-4
Published: August 1992, reprinted January 1994 with minor corrections.
Author: Craig Hunt
Publisher: O'Reilly & Associates
ISBN: 0-937175-82-X
Published: 1995
Authors: Evi Nemeth, Garth Snyder, Scott Seebass, Trent R. Hein
Publisher: Prentice Hall
ISBN: 0-13-151051-7
For network and protocol issues, see Chapter 14.
Published: 1994
Author: W. Richard Stevens
Publisher: Addison-Wesley Publishing Company
ISBN: 0-201-63346-9
Includes some advice on DNS in a firewall environment.
Published: 1994
Authors: William R. Cheswick and Steven M. Bellovin
Publisher: Addison-Wesley Publishing Company
ISBN: 0-201-63357-4
Published: September 1995
Authors: D. Brent Chapman and Elizabeth D. Zwicky
Publisher: O'Reilly & Associates
ISBN: 1-56592-124-0