An Internet-connected Linux machine is in a high-risk situation. This book details security steps that a small non-enterprise business user might take to protect themselves when dealing with what the attacker may gain and what a victim may lose. These steps include packet-level firewall filtering, IP masquerading, proxies, tcp wrappers, system integrity checking, and system security monitoring with an overall emphasis on filtering and protection. This book will provide a description of the need for security measures and solutions. The goal is to help people get their Internet security measures in place quickly, without the need to become an expert in security or firewalls.

About the Author

Bob Ziegler received his masters degree in computer science from the University of Wisconsin, Madison in 1984. Since that time, he has worked as a UNIX operating system kernel developer for various research and development companies. He became interested in small systems security issues when he began working on making his home system secure: Firewalls quickly became a passion. Bob is now a principal engineer with Nokia, designing and developing firewall products for the Ipsilon product family. In his spare time, Bob offers free Web-based firewall design services for the home user, as well as a popular Linux LAN and Firewall FAQ to help people quickly get their Linux systems set up securely.

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