Network Warrior: Everything You Need to Know That Wasn't on the CCNA Exam
DNS and BIND (5th Edition)
OSPF: Anatomy of an Internet Routing Protocol
BGP for Cisco Networks: A CCIE v5 guide to the Border Gateway Protocol (Cisco CCIE Routing and Switching v5.0) (Volume 1)
Site Reliability Engineering: How Google Runs Production Systems
Cisco IOS Cookbook: Field-Tested Solutions to Cisco Router Problems (Cookbooks (O'Reilly))
DNS and BIND on IPv6: DNS for the Next-Generation Internet
IPv6 Essentials: Integrating IPv6 into Your IPv4 Network
Internet Routing Architectures (2nd Edition)
JUNOS Cookbook: Time-Saving Techniques for JUNOS Software Configuration (Cookbooks (O'Reilly))