Unable to add “location /” to additional nginx directives for domain in Plesk: nginx: [emerg] duplicate location “/”

Dmitry Bystrov

10 months ago

Symptoms

Trying to add location / directive in Domains > example.com > Apache & nginx Settings > Additional nginx directives fails with the following error:
Invalid nginx configuration: nginx: [emerg] duplicate location "/" in /data/www/system/example.com/conf/vhost_nginx.conf:1 nginx: configuration file /etc/nginx/nginx.conf test failed

Location / is already defined in the main domain configuration file /var/www/vhosts/system/example.com/conf/nginx.conf when the Nginx service is enabled as a reverse proxy

Note: In the case that the additional directives that are needed to be added are for enabling Permalinks from WordPress, please use this article: After switching a WordPress website to FPM served by nginx in Plesk, it fails to load with "404 Not Found" on all pages except start page

To add location / to additional nginx directives:

See the below documentation article for more details:

Warning: The changes in the virtual hosts configuration templates are applied to all domains on the server.

Log in to Plesk GUI
In Domains > example.com > Apache & nginx directives temporary remove additional nginx directive containing location /;
Disable Proxy Mode and click Apply
Insert the necessary directive back into Additional nginx directives and click Apply

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