How To Install postfix-cdb on Ubuntu 20.04
Introduction
In this tutorial we learn how to install postfix-cdb on Ubuntu 20.04.
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.
Package: postfix-cdb Architecture: amd64 Version: 3.4.10-1ubuntu1 Priority: extra Section: mail Source: postfix Origin: Ubuntu Maintainer: Ubuntu Developers [email protected] Original-Maintainer: LaMont Jones [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 110 Depends: libc6 (>= 2.4), libcdb1, postfix (= 3.4.10-1ubuntu1) Breaks: postfix (« 3.1.3-7~) Filename: pool/main/p/postfix/postfix-cdb_3.4.10-1ubuntu1_amd64.deb Size: 13768 MD5sum: 37aa4a4727347ee51f550124c7eb6024 SHA1: 5fc97b1d5d55149749384a677e7ed731edbffead SHA256: 00a0183501b2cfc36cea08bd09846d321e07575e26d6d236a6d4088fa496cd91 Homepage: http://www.postfix.org Description-en: CDB map support for Postfix 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 Ubuntu 20.04. 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-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 Ubuntu. 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 Ubuntu 20.04
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 Ubuntu 20.04, 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 Ubuntu 20.04 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
References
Summary
In this tutorial we learn how to install postfix-cdb package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.