TELNET command is used to login from one system to another system that is to remotely login to a system on the network. Login name and password are required if you are logging in to another account on any other system.
For ping to work with Telnet, Firstly Install the TELNET. Do check that the Firewall is not blocking the Telnet.
Check the Linux system to ensure the Telnet is enabled on it and no intermediate firewall is blocking it.
Create an account on your system with a valid username and password
To check if the Telnet service is running, log on at the Linux console and use this command:
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In order for you to get ping program to work with Telnet on Linux, you should check the following: First, install Telnet client to your machine and add an exception to the firewall. Specify the name Telnet so that your firewall does not block Telnet. Then, Check UNIX server to see if it is enabled.
Telnet could be disabled to enable the user to you use SSH and create UNIX login Username and password. Now, log on to see if Telnet is running. Use the console command and enter the code provided in TELNET.txt file attached to this message.