195 Variables · 10 Module Guides

Master NGINX
from config to C code

The definitive educational reference — deep-dive module guides with source code review, a comprehensive searchable variable index, and production-ready configuration patterns.

Browse Variables Module Guides

nginx.conf — nginx101.com

What you'll learn

Everything NGINX, explained

From reverse proxy basics to C module internals — with production configs, source walkthroughs, and real gotchas.

Variables Reference

Searchable index of 195 NGINX variables across core HTTP, stream, and third-party modules — with config examples and gotchas.

195 variables

Module Deep-Dives

10 comprehensive articles on third-party modules: purpose, directives, C source code review, and installation via GetPageSpeed RPM.

10 modules · Source reviewed

Directives Reference

Every core and module directive with syntax, defaults, contexts, and production-ready configuration examples.

1517 directives documented

Deep understanding

Beyond the docs —
into the source

Every module guide walks through the C source code to explain why and how directives actually work under the hood.

✓ Directive syntax, defaults, and valid contexts
✓ C module handler internals and request flow
✓ Installation via GetPageSpeed RPM repo
✓ Real gotchas, edge cases, and known issues

          nginx.conf
        

# WebP auto-conversion with fallback
map $http_accept $webp_suffix {
    default   "";
    "~*webp"  ".webp";
}

server {
    listen 443 ssl http2;
    server_name nginx101.com;

    location ~* ^/img/(.+)\.(png|jpe?g)$ {
        set $base /img/$1;
        try_files
            $base$webp_suffix
            $uri
            =404;
    }
}
        