8 min
Fix 502 Bad Gateway on Plesk — nginx, Apache, and PHP-FPM
Diagnose 502 Bad Gateway errors on Plesk from the nginx proxy error log — refused upstreams, saturated PHP-FPM pools, oversized headers, and Apache restarts.
2026-10-09
9 min
PHP handlers in Plesk: FPM by nginx, FPM by Apache, FastCGI, and CGI
Plesk gives you five PHP handlers per domain — and the choice between nginx-only FPM and Apache-fronted FPM is the one most admins get wrong. Here is the trade-off, with memory math and recommendations.
2026-05-18
8 min
Tune PHP-FPM pools on cPanel — sizing pm.max_children
Size PHP-FPM pools per cPanel account without overcommitting RAM — pm.max_children math, dynamic vs ondemand vs static, and the failures that show up at 1 a.m.
2026-05-16
11 min
PHP handlers in cPanel: LSAPI vs PHP-FPM vs suPHP
Which PHP handler should you run on a cPanel server in 2026? A side-by-side look at LSAPI, PHP-FPM, suPHP, and FCGI — memory cost, throughput, and where each one breaks.
2026-05-16