How To Install opensmtpd on Kali Linux

Introduction

In this tutorial we learn how to install opensmtpd on Kali Linux.

What is opensmtpd

opensmtpd is:

The OpenSMTPD server seeks to be

• as secure as possible, and uses privilege separation to mitigate possible security bugs
• as reliable as possible: any accepted email must not be lost
• lean: it covers typical usage cases instead of every obscure one
• easy to configure, with a configuration syntax reminiscent of the OpenBSD Packet Filter’s (PF)
• fast and efficient: it can handle large queues with reasonable performance

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

Install opensmtpd Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install opensmtpd

Install opensmtpd Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install opensmtpd

Install opensmtpd Using aptitude

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

sudo aptitude update

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

sudo aptitude -y install opensmtpd

How To Uninstall opensmtpd on Kali Linux

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

sudo apt-get remove opensmtpd

Uninstall opensmtpd And Its Dependencies

To uninstall opensmtpd and its dependencies that are no longer needed by Kali Linux, we can use the command below:

sudo apt-get -y autoremove opensmtpd

Remove opensmtpd Configurations and Data

To remove opensmtpd configuration and data from Kali Linux we can use the following command:

sudo apt-get -y purge opensmtpd

Remove opensmtpd configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge opensmtpd

Dependencies

opensmtpd have the following dependencies:

• init-system-helpers
• libc6
• libcrypt1

References

• opensmtpd website

Summary

In this tutorial we learn how to install opensmtpd package on Kali Linux using different package management tools: apt, apt-get and aptitude.