How To Install cvm-mysql on Debian 9
Introduction
In this tutorial we learn how to install cvm-mysql on Debian 9.
What is cvm-mysql
cvm-mysql 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.
See http://untroubled.org/cvm/cvm.html for more information.
There are three methods to install cvm-mysql 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 cvm-mysql 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-mysql using apt-get by running the following command:
sudo apt-get -y install cvm-mysql
Install cvm-mysql Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install cvm-mysql using apt by running the following command:
sudo apt -y install cvm-mysql
Install cvm-mysql 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 cvm-mysql using aptitude by running the following command:
sudo aptitude -y install cvm-mysql
How To Uninstall cvm-mysql on Debian 9
To uninstall only the cvm-mysql package we can use the following command:
sudo apt-get remove cvm-mysql
Uninstall cvm-mysql And Its Dependencies
To uninstall cvm-mysql and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove cvm-mysql
Remove cvm-mysql Configurations and Data
To remove cvm-mysql configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge cvm-mysql
Remove cvm-mysql configuration, data, and all of its dependencies
We can use the following command to remove cvm-mysql configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge cvm-mysql
Dependencies
cvm-mysql have the following dependencies:
References
Summary
In this tutorial we learn how to install cvm-mysql package on Debian 9 using different package management tools: apt, apt-get and aptitude.