How To Install telnet on Debian 11

In this tutorial we learn how to install telnet on Debian 11. telnet is basic telnet client

Introduction

In this tutorial we learn how to install telnet on Debian 11.

What is telnet

telnet is:

The telnet command is used for interactive communication with another host using the TELNET protocol.

For the purpose of remote login, the present client executable should be depreciated in favour of an ssh-client, or in some cases with variants like telnet-ssl or Kerberized TELNET clients. The most important reason is that this implementation exchanges user name and password in clear text.

On the other hand, the present program does satisfy common use cases of network diagnostics, like protocol testing of SMTP services, so it can become handy enough.

There are three methods to install telnet on Debian 11. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install telnet Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install telnet using apt-get by running the following command:

sudo apt-get -y install telnet

Install telnet Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install telnet using apt by running the following command:

sudo apt -y install telnet

Install telnet Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Debian. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install telnet using aptitude by running the following command:

sudo aptitude -y install telnet

How To Uninstall telnet on Debian 11

To uninstall only the telnet package we can use the following command:

sudo apt-get remove telnet

Uninstall telnet And Its Dependencies

To uninstall telnet and its dependencies that are no longer needed by Debian 11, we can use the command below:

sudo apt-get -y autoremove telnet

Remove telnet Configurations and Data

To remove telnet configuration and data from Debian 11 we can use the following command:

sudo apt-get -y purge telnet

Remove telnet configuration, data, and all of its dependencies

We can use the following command to remove telnet configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge telnet

Dependencies

telnet have the following dependencies:

References

Summary

In this tutorial we learn how to install telnet package on Debian 11 using different package management tools: apt, apt-get and aptitude.