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Web Server Performance Knowledge & Troubleshooting Guides
Showing all verified technical guides and diagnostic steps in the performance category.
performance 6 min read
How to Diagnose and Resolve 502 Bad Gateway Errors in Nginx and PHP-FPM
Identify upstream socket buffer overflows, fastcgi_read_timeout limits, crashed daemon workers, and SELinux permission blocks.
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performance 10 min read
How to Fix “504 Gateway Timeout” Error in Nginx and Web Servers
A production guide to diagnose and fix HTTP 504 Gateway Timeout errors in Nginx, PHP-FPM, and Apache. Tune fastcgi_read_timeout, fix worker pool exhaustion, and trace slow upstream queries.
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