How To Install opensmtpd on Debian 9
Introduction
In this tutorial we learn how to install opensmtpd on Debian 9.
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 Debian 9. 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 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 opensmtpd using aptitude by running the following command:
sudo aptitude -y install opensmtpd
How To Uninstall opensmtpd on Debian 9
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 Debian 9, we can use the command below:
sudo apt-get -y autoremove opensmtpd
Remove opensmtpd Configurations and Data
To remove opensmtpd configuration and data from Debian 9 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:
References
Summary
In this tutorial we learn how to install opensmtpd package on Debian 9 using different package management tools: apt, apt-get and aptitude.