How To Install cvm on Ubuntu 22.04
Introduction
In this tutorial we learn how to install cvm on Ubuntu 22.04.
What is cvm
cvm is:
CVM is a framework for validating a set of credentials against a database using a filter program. The modules act as a filter, taking a set of credentials as input and writing a set of facts as output if those credentials are valid. Optional input is given to the module through environment variables.
Some of the ideas for CVM came from experience with PAM (pluggable authentication modules), the checkpassword interface used by qmail-pop3d, and the “authmod” interface used by Courier IMAP and POP3. This framework places fewer restrictions on the invoking client than checkpassword does, and is much simpler to implement on both sides than PAM and the authmod framework.
This package includes cvm binaries.
There are three methods to install cvm on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install cvm Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install cvm using apt-get by running the following command:
sudo apt-get -y install cvm
Install cvm Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install cvm using apt by running the following command:
sudo apt -y install cvm
Install cvm 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 cvm using aptitude by running the following command:
sudo aptitude -y install cvm
How To Uninstall cvm on Ubuntu 22.04
To uninstall only the cvm package we can use the following command:
sudo apt-get remove cvm
Uninstall cvm And Its Dependencies
To uninstall cvm and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove cvm
Remove cvm Configurations and Data
To remove cvm configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge cvm
Remove cvm configuration, data, and all of its dependencies
We can use the following command to remove cvm configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge cvm
References
Summary
In this tutorial we learn how to install cvm package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.
