Issue Nginx being used over Apache but not using Nginx

[Crakila]

Server operating system version

AlmaLinux 8.6 (Sky Tiger)

Plesk version and microupdate number

18.0.46

Hey everyone.

While 'Reverse Proxy Server (nginx)' is enabled in the Tools & Settings >> Services Management
but the site is set to "Dedicated FPM Application served by Apache",
when trying to access the site, it gives a nginx 504 timeout

How is this possible when the site is not set to use nginx?

We only resolved this issue by turning off the 'Reverse Proxy Server (nginx)' service but that is not ideal as some sites do require nginx.

Any help please?

 

[Kaspar]

Likely your domain is running Nginx in proxy mode. In which case Nginx is used as a proxy for the domain and will send all request to upstream to Apache.

You can disable proxy mode on the Hosting & DNS tab of your domain > Apache & nginx Settings.