Modern Operating Systems
Andrew S. Tanenbaum & Herbert Bos
Cable Networks, Services, and Management
Mehmet Toy
Practical Linux Infrastructure
Syed Ali
RHSA III
Wander Boessenkool, Chen Chang, Will Dinyes, George Hacker, ...
Red Hat System Administration (3)
The Illustrated Network: How TCP/IP Works in a Modern Network
Walter Goralski
Systems Programming: Designing and Developing Distributed Applications
Richard Anthony