DNS & Bind Cookbook: Solutions & Examples for System Administrators
Network Warrior: Everything You Need to Know That Wasn't on the CCNA Exam
SSH Mastery: OpenSSH, PuTTY, Tunnels and Keys (IT Mastery Book 1)
DNS Security: In-depth Vulnerability Analysis and Mitigation Solutions
BGP: Building Reliable Networks with the Border Gateway Protocol
How Linux Works, 2nd Edition: What Every Superuser Should Know
TCP/IP Network Administration: Help for Unix System Administrators
Hash Crack: Password Cracking Manual (v2.0)
The TCP/IP Guide: A Comprehensive, Illustrated Internet Protocols Reference
Active Directory: Designing, Deploying, and Running Active Directory