How To Install postfix-ldap on Ubuntu 18.04
Introduction
In this tutorial we learn how to install postfix-ldap on Ubuntu 18.04.
What is postfix-ldap
postfix-ldap 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 LDAP maps in Postfix. If you plan to use LDAP maps with Postfix, you need this.
There are three methods to install postfix-ldap on Ubuntu 18.04. 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-ldap 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-ldap using apt-get by running the following command:
sudo apt-get -y install postfix-ldap
Install postfix-ldap Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install postfix-ldap using apt by running the following command:
sudo apt -y install postfix-ldap
Install postfix-ldap 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 Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install postfix-ldap using aptitude by running the following command:
sudo aptitude -y install postfix-ldap
How To Uninstall postfix-ldap on Ubuntu 18.04
To uninstall only the postfix-ldap package we can use the following command:
sudo apt-get remove postfix-ldap
Uninstall postfix-ldap And Its Dependencies
To uninstall postfix-ldap and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove postfix-ldap
Remove postfix-ldap Configurations and Data
To remove postfix-ldap configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge postfix-ldap
Remove postfix-ldap configuration, data, and all of its dependencies
We can use the following command to remove postfix-ldap configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge postfix-ldap
References
Summary
In this tutorial we learn how to install postfix-ldap package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
