How To Install postfix-cdb on Debian 9
Introduction
In this tutorial we learn how to install postfix-cdb on Debian 9.
What is postfix-cdb
postfix-cdb is:
Postfix is Wietse Venema’s mail transport agent that started life as an alternative to the widely-used Sendmail program. Postfix attempts to be fast, easy to administer, and secure, while at the same time being sendmail compatible enough to not upset existing users. Thus, the outside has a sendmail-ish flavor, but the inside is completely different.
This provides support for CDB (constant database) maps in Postfix. If you plan to use CDB maps with Postfix, you need this.
There are three methods to install postfix-cdb 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 postfix-cdb Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install postfix-cdb using apt-get by running the following command:
sudo apt-get -y install postfix-cdb
Install postfix-cdb Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install postfix-cdb using apt by running the following command:
sudo apt -y install postfix-cdb
Install postfix-cdb 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 postfix-cdb using aptitude by running the following command:
sudo aptitude -y install postfix-cdb
How To Uninstall postfix-cdb on Debian 9
To uninstall only the postfix-cdb package we can use the following command:
sudo apt-get remove postfix-cdb
Uninstall postfix-cdb And Its Dependencies
To uninstall postfix-cdb and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove postfix-cdb
Remove postfix-cdb Configurations and Data
To remove postfix-cdb configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge postfix-cdb
Remove postfix-cdb configuration, data, and all of its dependencies
We can use the following command to remove postfix-cdb configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge postfix-cdb
Dependencies
postfix-cdb have the following dependencies:
References
Summary
In this tutorial we learn how to install postfix-cdb package on Debian 9 using different package management tools: apt, apt-get and aptitude.