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john-auld/netcat-udp-connectivity-test.md

Last active April 17, 2019 09:50
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UDP Connectivity check
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netcat-udp-connectivity-test.md

No connectivity

nc -u -z -w 3 8.8.8.8 54 && echo OK || echo failed
failed

With connectivity

nc -u -z -w 3 8.8.8.8 53 && echo OK || echo failed
OK
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Centos 7: yum install nmap-ncat

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