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rated 0 times [ 1] [ 0] / answers: 1 / hits: 535 / 2 Years ago, sun, august 28, 2022, 11:28:26

I do need a tool that would work just like ping, but that shows me response on a given port.

I do know about telnet and nmap, but they give me only one result, not a constant loop, with which I could see changes over time.

is there anything like that?

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answered 2 Years ago ciousuntru · Accepted Answer

The netcat utility will do exactly what you are looking for:

$ nc -lk 1234

The -l option will start netcat listening on a port. The -k option forces it to keep listening for new connections.

Netcat should be installed on your system by default; it is part of ubuntu-minimal. If not, you can install it with apt-get install netcat-openbsd.