Can two programs work on the same port but on different IPs?

Question

Computer networks

Good afternoon, tell me, please, is it possible to run both Apache2 and nginx on a computer so that they simultaneously listen to the 80th port, but on different IP addresses?
Now nginx gives an error that Cannot assign requested address.

Answer 1

In the Nginx config we write:
Documentation
In the Apache config we write:
Documentation
In the browser go to 127.0.0.42 and 127.0.0.43. We observe the difference.

Answer 2

Yes, please read the setup manual.

Answer 3

You can, but it's better to hang Apache on port 8888, for example, and proxy to it from port 80 through nginx.
This is a very common configuration, and you won't need to bother with binding to different addresses. Well, the config for the enginx is an order of magnitude simpler ...