FreeBSD--the powerful, flexible, and free Unix-like operating system--is the preferred server for many enterprises. But it can be even trickier to use than either Unix or Linux, and harder still to master.
Absolute FreeBSD, 2nd Edition is your complete guide to FreeBSD, written by FreeBSD committer Michael W. Lucas. Lucas considers this completely revised and rewritten second edition of his landmark work to be his best work ever; a true product of his love for FreeBSD and the support of the FreeBSD community. Absolute FreeBSD, 2nd Edition covers installation, networking, security, network services, system performance, kernel tweaking, filesystems, SMP, upgrading, crash debugging, and much more, including coverage of how to:

Use advanced security features like packet filtering, virtual machines, and host-based intrusion detection
Build custom live FreeBSD CDs and bootable flash
Manage network services and filesystems
Use DNS and set up email, IMAP, web, and FTP services for both servers and clients
Monitor your system with performance-testing and troubleshooting tools
Run diskless systems
Manage schedulers, remap shared libraries, and optimize your system for your hardware and your workload
Build custom network appliances with embedded FreeBSD
Implement redundant disks, even without special hardware
Integrate FreeBSD-specific SNMP into your network management system.
Whether youre just getting started with FreeBSD or youve been using it for years, youll find this book to be the definitive guide to FreeBSD that youve been waiting for.