NGINX Directive Execution Order: The 11 Request Phases
How NGINX directive execution order really works: the 11 request phases, why return beats deny, why a server rewrite changes your location, and where…
nginx modules
Practical nginx modules guides from the GetPageSpeed engineering team: configuration, performance tuning and security for production Linux servers.
80 articles
NGINX RADIUS Authentication: No More htpasswd Files
Stock NGINX cannot talk to RADIUS. The nginx-module-auth-radius package adds RFC 2865 authentication with multi-server failover, verified end to end against FreeRADIUS, including the…
NGINX Variables: Scope, Handlers, and Common Pitfalls
How NGINX variables really work: per-request containers, get handlers, lazy-and-cached map values, the empty-versus-not-found distinction, and subrequest isolation, with runnable, curl-verified examples using the…
Migrate From the ondrej nginx PPA to GetPageSpeed
The ondrej/nginx PPA deprecated its module packages at NGINX 1.28. Here is how to migrate to the GetPageSpeed APT repository and keep Brotli, Lua,…
NGINX Abuse Guard Module: Auto-Ban Scanners and Bots
Stop vulnerability scanners and brute-force bots automatically. The NGINX abuse guard module bans clients by their 404 and 403 error rate, in-worker, with no…
NGINX Dynamic TLS Records: An Honest Benchmark in 2026
We rebuilt nginx-mod with Cloudflare's 2015 dynamic TLS records patch and benchmarked it in a controlled rig with random interleave, CPU pinning, and 200…
NGINX slow_start: Gradual Upstream Ramp-Up Without Plus
NGINX Plus has slow_start to ramp traffic to freshly-live upstream servers from zero to full weight. Open-source NGINX has the struct field but never…
NGINX Immutable Module: Far-Future Cache-Control Headers
Cut wasted revalidation requests on versioned static assets. The NGINX immutable module emits RFC-compliant far-future Cache-Control headers with the immutable attribute, stale-while-revalidate, and stale-if-error…
NGINX XSLT Module: Transform XML Responses into HTML
Learn how to use the NGINX XSLT module to transform XML responses into HTML, RSS feeds into styled web pages, and XML API output…
NGINX Automatic Image Conversion: WebP and AVIF
Learn how to automatically convert and serve WebP and AVIF images in NGINX using the ngx_immerse filter module. This module transparently intercepts image responses…