Artiya4u

Ping without ping command

This is useful in an environment that has no ping command and cannot install it e.g. in Docker or Kubernetes pod. For checking connections to other hosts like MySQL, web server using TCP connection.

Example for MySQL

(echo >/dev/tcp/192.168.0.17/3306) &>/dev/null && echo "open" || echo "closed"

#docker #linux #k8s #ping

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