Intended for established system administrators, this guide provides security-minded walkthroughs of FreeBSD and OpenBSD operating system installation, configuration, and maintenance activities. Separate chapters suggest how to leverage specific BSD features to improve the security posture of DNS servers, firewalls, mail gateways, web servers, auditing procedures, and incident response. All three authors have worked for Cigital, Inc at one time. Annotation ©2005 Book News, Inc., Portland, OR