"You have in your hands a book I've been waiting to read for years-a practical, hands-on guide to hardening your Linux system."

—From the foreword by Eric S. Raymond

• Secure your system, detect an attack, track the cracker, and recover quickly
• Learn the gory details of securing Web servers and Sendmail
• Explore e-commerce issues, Trojan Horses, GPG and more
• Step-by-step guide to installing and using key security tools

"A comprehensive guide to system security-covers everything from hardening a system to system-recovery after an attack. "

—Steve Bourne, Creator of the Bourne Shell

Your enemy is coming—are you ready?

It's not a question of "if" but "when." Will you be ready to protect your system when a cracker comes to call? Real World Linux Security goes beyond the books that merely detail system vulnerabilities; it offers system administrators practical solutions for safeguarding Linux systems and actively responding to break-in attempts. Veteran Bob Toxen shows you how to know your enemies and stop them at the front gate, before they can damage your system.

The hands-on guide to protecting your Linux data—and yourself

• 7 "deadly sins of Linux security"
• Set up effective firewalls
• Break-in case studies
• Develop internal security policies
• Block spam
• Recover quickly from an intrusion

About the CD-ROM

The accompanying CD contains original software that locks out crackers and alerts system administrators. Inaddition, it includes programs that monitor system health and report suspicious activities, detect network sniffers, and speed backup and recovery.

About the Author

Bob Toxen has 26 years of UNIX/Linux experience, and is one of the 168 recognized developers of Berkeley UNIX. He learned about security as a student at UC Berkeley, when he played for "the other team," successfully cracking several of the original UNIX systems there. He is president of Fly-By-Day Consulting, specializing in Linux security, client/server creation, system administration, porting, and C programming.

Technical Reviewers

• Kurt Seifried, Sr. Analyst, SecurityPortal
• Dr. Indira Moyer, Consultant
• Larry Gee, Architect, ApplianceWare
• Michael Warfield, Sr. Wizard X-Force, Internet Security Systems
• Stephen Friedl, Consultant
• Mike O'Shaughnessy, Quarry Technologies