Using Netcat to check connectivity to mysql on port 3306

Netcat is a tool in linux which can be very powerful is used correctly.

If you want to check the default port is pingable for mysql i.e. 3306 you can validate it via netcat

[ankit.mittal@bastion.test2]# nc -vz master-db.unixcloudfusion.in 3306

Connection to master-db.unixcloudfusion.in 3306 port [tcp/mysql] succeeded!