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Use netcat to check udp port status

Damn you, Windows.  You’ve conditioned me to use telnet for network connectivity checks instead of superior tools like netcat (which supports UDP ports). 

I nearly forgot this one so I thought I’d write it down:

nc -vzu <ip address> <udp port or port range>

  • -v enables verbose mode for easier feedback.
  • -z scans for listening daemons without sending any data to them.
  • -u uses UDP instead of TCP.

‘Nuff said.

    • #netcat
    • #linux
    • #tcp
    • #udp
    • #ports
    • #networking
    • #network
    • #technology
    • #troubleshooting
    • #port status
  • 4 months ago
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