How to add/remove web root on nginx?

Question

linux

How to add/remove web root on nginx?
There is a project on the server on which the nginx web server is installed.
Tell me more, which services can have users on the server?
For example, such as root in phpmyadmin ?
Thanks

Answer 1

1. nginx.org/ru/docs/http/ngx_http_core_module.html#root 2.
cat /etc/passwd , but usually if the service runs under a web server, it does not have a user.