"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 comingare 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 dataand 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. In addition, 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 TechnologiesToxen, Bob is the author of 'Real World Linux Security' with ISBN 9780130281876 and ISBN 0130281875.