The OpenBSD operating system is a secure, stable, and powerful operating system that is attracting many new and old UNIX users to it. The OS is well designed for both workstation and server use. OpenBSD supports many mainstream applications and also offers great hardware support. Since OpenBSD doesn't have many of the business pressures of increasing sales and trendy gimmicks that Linux and other BSD systems have, it is able to be designed on technical merit. This means that while the system works very well, it isn't targeted at the user who wants to be able to "point and click" and not read the documentation. This book is written to help new users understand the features of the OpenBSD system and to give more seasoned users the education to fully exploit all that OpenBSD has to offer. ***The topic of security is sprinkled throughout every chapter, because this is how security is best done. A chapter or two at the end of a book simply cannot demonstrate how OpenBSD has integrated security into almost every facet of the system.

"This book works in tandem with the OpenBSD's manual pages. As a result, it will help many users grow and get the most from the system."-Theo de Raadt, OpenBSD project leader.

"The OpenBSD system intimidates many administrators who would benefit from using it. This book lets people start much higher up on the curve. Secure Architectures with OpenBSD not only presents the hows, but also shows some of the whys that only insiders know."-Mike Frantzen, NFR Security

"Secure Architectures with OpenBSD explains all of the tasks an administrator has to know about to successfully maintain an OpenBSD server. It helps the reader save time by condensing the vast amount of information available in man pages into a compact form, reducing unneeded information, and explaining other things in much more detail and prose than a man page can afford."-Daniel Hartmeier, the OpenBSD Project

"This book will become the de facto text for OpenBSD administration. Unix and BSD books abound, but none cover OpenBSD with the clarity and expertise of Palmer and Nazario. They explain the optimal way to configure and administer your OpenBSD machines, with a keen eye to security at all stages."-Brian Hatch, coauthor of Hacking Exposed Linux and Building Linux Virtual Private Networks

Descended from BSD, OpenBSD is a popular choice for those who demand stability and security from their operating system. No code goes into OpenBSD without first undergoing a rigorous security check, making it a terrific choice for Web servers, VPNs, and firewalls.

Secure Architectures with OpenBSD is the insider's guide to building secure systems using OpenBSD. Written by Brandon Palmer and Jose Nazario, this book is a how-to for system and network administrators who need to move to a more secure operating system and a reference for seasoned OpenBSD users who want to fully exploit every feature of the system.

After getting readers started with OpenBSD, the authors explain system configuration and administration, then explore more exotic hardware and advanced topics. Every chapter of the book addresses the issue of security because security is integrated into almost every facet of OpenBSD. Examples appear throughout the book, and the authors provide source code and system details unavailable anywhere else. This goes well beyond the basics and gives readers information they will need long after they have installed the system.

• Installation and upgrade details
• Basic system usage in OpenBSD versus other Unix systems
• Third-party software via packages and the ports tree
• SMTP services in OpenBSD
• Web services with Apache
• Using OpenBSD as a firewall
• OpenBSD as a Kerberos V client and server
• Use of Ipsec
• Configuration and use of IPv6
• Network intrusion detection

Secure Architectures with OpenBSD takes you inside OpenBSD, giving you the insights and expertise no system manual can provide. The companion Web site tracks advances and changes made to the operating system, and it contains updates to the book and working code samples.