Checking Connection without Telnet

Some of the minimal Linux distributions have no telnet client utility or similar utilities such as nc,ncat¬†unless you install it. Most of time we need to do troubleshooting to check connection if¬† server/service is accessible. Do not worry–You still have mechanism inside the Linux kernel without installing above utilities. Take a look at below examples and change it accordingly for your case.

Checking TCP connection:

Checking UDP Connection: