NGINX 502 Bad Gateway: Every Cause and Fix (Complete Guide)
by Danila Vershinin, January 24, 2026
Learn how to fix NGINX 502 Bad Gateway errors. This comprehensive guide covers every cause including PHP-FPM issues, socket permissions, buffer problems, and more with tested solutions.
Read More...NGINX Location Priority: Complete Regex Matching Guide
by Danila Vershinin,
Master NGINX location priority and regex matching. Learn how =, ^~, ~, and ~* modifiers work, understand the matching algorithm from NGINX source code, avoid common security pitfalls, and use tools like Gixy to validate your configuration.
Read More...NGINX Load Balancing: Complete Guide to Algorithms & Setup
by Danila Vershinin, January 23, 2026
Learn how NGINX load balancing works under the hood. This complete guide covers all load balancing algorithms including round-robin, least connections, IP hash, consistent hashing, and the Power of Two Choices, with production-ready configuration examples.
Read More...NGINX Reverse Proxy: The Complete Guide
by Danila Vershinin,
Master NGINX reverse proxy configuration from basics to advanced. Learn proxy_pass, upstream load balancing, headers, buffering, timeouts, WebSockets, and troubleshooting 502/504 errors with production-ready examples.
Read More...NGINX client_max_body_size: Fix 413 Errors
by Danila Vershinin,
Learn how to fix the NGINX 413 Request Entity Too Large error by configuring client_max_body_size. This complete guide covers syntax, size formats, context inheritance, PHP-FPM integration, WordPress configuration, and security best practices.
Read More...NGINX Amplify Alternative: The Drop-In Replacement (2026)
by Danila Vershinin, January 22, 2026
NGINX Amplify was discontinued on January 31, 2026. GetPageSpeed Amplify is the only drop-in compatible replacement—migrate in 60 seconds without changing your agent. Get website monitoring, Gixy security analysis, custom dashboards, and features F5 never offered.
Read More...NGINX Rate Limiting: The Complete Guide
by Danila Vershinin,
Learn how to configure NGINX rate limiting using the leaky bucket algorithm. This comprehensive guide covers limit_req_zone, burst, nodelay, delay parameters, whitelisting IPs, and production-ready configurations to protect your server from DDoS attacks, API abuse, and brute force attempts.
Read More...504 Gateway Timeout NGINX: How to Fix It
by Danila Vershinin,
Stop copy-pasting timeout fixes. Learn which NGINX directive actually causes 504 errors and how to fix it properly—whether you’re proxying to Varnish, Node.js, PHP-FPM, or any HTTP backend.
Read More...NGINX TLS 1.3 Hardening: A+ SSL Configuration Guide
by Danila Vershinin, January 21, 2026
Learn how to configure NGINX for maximum TLS security with TLS 1.3, achieve an A+ SSL Labs rating, and use tools like Gixy for automated security validation. Complete guide with tested configurations for RHEL 9, Rocky Linux, and AlmaLinux.
Read More...NGINX FastCGI Keepalive: Persistent PHP-FPM Connections
by Danila Vershinin,
Learn how to configure persistent FastCGI connections between NGINX and PHP-FPM using fastcgi_keep_conn and upstream keepalive directives. Includes production-ready configurations, PHP-FPM tuning tips, and troubleshooting guidance.
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