nginx-admins-handbook
How to improve NGINX performance, security, and other important things.
A detailed Nginx reference handbook covering configuration, performance tuning, and security hardening, with printable cheat sheets, helper scripts, and a curated list of tools for server administrators.
This repository is a detailed reference handbook for people who run or configure Nginx, a widely used web server. Nginx sits between users and web applications, handling incoming requests, routing traffic, serving files, and managing connections. The handbook covers how to set it up correctly, how to make it perform well, and how to harden it against security problems.
The author describes it as personal notes on administration basics, tips, caveats, and gotchas collected over time. It is organized as a long document split into several chapters: HTTP fundamentals, Nginx architecture and configuration concepts, performance tuning, security hardening, and common pitfalls. Each section goes into practical depth, explaining the reasoning behind recommendations rather than just listing commands to run.
Along with the written content, the repository includes bonus materials: printable cheat sheets for security hardening, a script to generate clean error pages, a tool to parse server name configurations, and a curated list of external books, tools, and resources for further reading. There are references to configuration analysis tools, log analysis tools, benchmarking tools, and testing tools.
The handbook is aimed at system administrators and developers who already have some familiarity with running web servers. It does not assume expert knowledge of Nginx specifically, but it does assume comfort working in a Linux terminal and reading configuration files.
The project is open source under the MIT license and accepts contributions. The full README is longer than what was shown.
Where it fits
- Harden an Nginx server by following the security chapter's step-by-step recommendations for headers, TLS, and access controls.
- Tune Nginx worker processes, connection limits, and buffer sizes for high-traffic production workloads.
- Use the printable security cheat sheet as a quick reference when setting up a new Nginx instance.
- Look up common Nginx configuration mistakes in the pitfalls chapter to avoid breaking your setup.