Ido Dubrawsky

Firewall fundamentals

2006

Eleventh hour security+

2010

The CompTIA Security + certification guide

2009

Security+ Study Guide

2007

Red Hat Linux System Administration Unleashed

2000

How to Cheat at Securing Your Network

2011

How to Cheat at Securing Your Network (How to Cheat)

2007

Hack Proofing Your Network

2002

CompTIA Security+ Certification Study Guide

2009

Cisco security professional's guide to secure intrusion detection systems

2003

CCSP self-study

2004

CCSP CSI exam certification guide

2003

Caldera OpenLinux system administration unleashed

2000