How to determine from which IP addresses to knock on the site?

Question

Nginx

Good afternoon.
Probably a silly question. But still.
Enable the most informative log and sort what you need?

Answer 1

The log is enabled by default. There are dozens of solutions for analyzing access.log, choose one of them and go ahead.

Answer 2

who is knocking? Wogluskr?

Answer 3

The easiest way to get a list
but there will be duplicates