Netcat to Test Connectivity
Need to test port connectivity between two hosts? Netcat to the rescue! Start the server on one host (port 1234 in this example)...
nc -l 1234Then connect to it from the other host...
nc server-name 1234Hopefully nothing should happen, but now anything you type into either end will be relayed to the other, showing the connection is ok.
Written by Rhodri Pugh
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3 Responses
Useful, thanks!
over 1 year ago
·
If you want to log UDP specifically, try nc -lu 1234
over 1 year ago
·
You can use the flag "-z" that closes the connection right after a successful attempt...
over 1 year ago
·
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