Configuring Telnet Server on Linux (CentOS, RHEL 6, Fedora)

In this Blog, we will learn how to configure Telnet Server on Centos Linux. Telnet protocol allows you to connect to remote hosts over TCP/IP network.

We need three packages to configure telnet server in Linux:

      A. xinetd

      B. telnet-server

      C. telnet-client

Note: Use root to configure Telnet server.

Below are the steps to configure the same:

Server-side Configuration –

Step 1 – Install the Telnet package.

This command will also install the dependency package. (i.e. xinetd)

Step 2 – Once you have installed the packages, open /etc/xinetd.d/telnet file

Then update this file according to below image:

Ensure to make disable = no.

Save and quit the file.

Step 3 – Now start the telnet service using the following command:

Step 4 – Turn the Telnet server on using the chkconfig command to start automatically on every reboot.

Step 5 – Allow telnet into Linux firewall.

Next, Add this line (refer below image)

Restart the iptables services:

Step 6 – We need to create a normal user to access telnet, hence by default root is not allowed to access it.

Step 7 –  Verify your telnet server whether it is working or not?

Here we have configured the telnet-server, now we need to configure telnet client.

 Telnet-client side configuration –

Step 1 – Go to client and Install the telnet package-

Step 2 – type the following command to check connectivity with server-

We are getting reply of ping from server so we have connectivity with server.

Step 3 – Now connect with your telnet server using below command-

The telnet server for Linux is thus configured.

Hope this Blog was informative enough. 

Feel free to contact us at support@acadgild.com for any further query.