- Plesk for Linux
Domain example.com that is served by PHP-FPM does not work:
503 service unavailable
The following error appears in domain's error log
[proxy:error] [pid 7314] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /var/www/vhosts/system/example.com/php-fpm.sock (*) failed
[proxy:error] [pid 15065:tid 139826443527936] (111)Connection refused: AH02454: FCGI: attempt to connect to Unix domain socket /data/vhosts/system/example.com/php-fpm.sock (*) failed
[proxy_fcgi:error] [pid 15065:tid 139826443527936] [client 203.0.113.2:50232] AH01079: failed to make connection to backend: httpd-UDS
Configuration file for a domain is missing in
Pool configuration file is missing or corrupted.
Regenerate configuration by opening Home > Domains > example.com > PHP Settings and click OK.
If multiple domains are affected, the following command can be used to update PHP settings on all domains:
# /usr/local/psa/bin/php_settings -u