How is this address configured?

Question

Network administration

The site has a site.ru url: 1234
How is such a thing configured, where to find it, and so on?

Answer 1

For apache - httpd.conf - Listen 1234
For nginx - nginx.conf - listen 1234;
It's easier to go into /etc/ and search for all files containing 1234.

Answer 2

By default, any HTTP server listens on port 80, that is, the URL is http://domain-or-ip/equivalent to http://domain-or-ip:80/, and that site's server is configured to listen on port 1234, so the client (browser) connects on this port.