Think Bayes
Allen B. Downey
Practical Linux Infrastructure
Syed Ali
How Linux Works: What Every Superuser Should Know
Brian Ward
Java 9 High Performance
Mayur Ramgir
Virtual Routing With Cisco Cloud Services Router (CSR 1000V)
Arvind Durai & Stephen Lynn & Amit Srivastava
PostgreSQL 9 High Availability Cookbook
Shaun M. Thomas
The Practice of Cloud System Administration: Designing and Operating ...
Thomas A. Limoncelli & Strata R. Chalup & Christina J. Hogan
The Practice of System Administration (2)
Linux Kernel Networking: Implementation and Theory
Rami Rosen
Developing RESTful Web Services With Jersey 2. 0
Sunil Gulabani
Absolute FreeBSD: The Complete Guide to FreeBSD, 2nd Edition
Michael W. Lucas