Nginx: From Beginner to Pro
Rahul Soni
Linux Iptables: Pocket Reference - Firewalls, NAT & Accounting
Gregor N. Purdy
PostgreSQL Query Optimization: The Ultimate Guide to Building ...
Henrietta Dombrowskaya & Boris Novikov & Anna Bailliekova
Learning GraphQL: Declarative Data Fetching for Modern Web Apps
Eve Porcello & Alex Banks
Learn Llinux Shell Scripting: A comprehensive guide to automating ...
Sebastian Tammer
Power User Guide: Linux Tricks, Hacks and Secrets
Jason Savitt
Bash Cookbook: Solutions and Examples for Bash Users
Carl Albing & JP Vossen