How to proxy requests to apache 2 on Mac OS X?

Question

System administration

Ladies and gentlemen, I appeal to your help!
There is a machine on MacOS X and several running on it on different ports of the apache2 web server. It is required to redirect requests to the server like this:

http://exampledomain.local:80/ -> http://localhost:8899/
http://example.com:80/ -> http://localhost:2345/

The options are given as an example, many instance web servers can be launched. Accordingly, I want to achieve such an effect when the user enters in the address bar, for example, example.com , and technically receives the page from one of the web server instances running on the "left" port.
Yes, yes, I know it's http proxying , but how do I set it up?
How can this be done with some console utility? That is, options with the GUI are fundamentally not suitable.
Thanks in advance!

Answer 1

mod_rewrite +VirtualHost?