How Linux Works: What Every Superuser Should Know
Brian Ward
The Illustrated Network: How TCP/IP Works in a Modern Network
Walter Goralski
Introducing Maven
Balaji Varanasi & Sudha Belida
Ethernet: The Definitive Guide
Charles E. Spurgeon & Joann Zimmerman
Getting Started With Varnish Cache: Accelerate Your Web Applications
Thijs Feryn
Getting Started With Memcached
Ahmed Soliman