Good day, I have a question, there is a computer, it has some ports open, a proxy is on one of them, how can you understand on which one? If you use nmap with a banner script, it does not return anything on this port, is there a way to check for a proxy without trying to use it as a proxy?

Closed due to the fact that the issue is too general for participants Streletz , aleksandr barakin , Denis , cheops , αλεχολυτ 24 Sep '16 at 16:16 .

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  • "Is there a way to check for a proxy without trying to use it as a proxy?" - IMHO no. For SOCKS, you will need to send data in accordance with the SOCKS protocol, and this is already using it as a proxy. - Vladimir Martyanov

2 answers 2

The service is not required to report about itself, but if it reports it, then this is easily verified using telnet.

    https://2ip.ru/check-port/ - this, or any other port scanner. And then google which applications use open ports.