How To Install cvm on Debian 10

Learn how to install cvm on Debian 10 with this tutorial. cvm is Credential Validation Modules

Introduction

In this tutorial we learn how to install cvm on Debian 10.

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.

See http://untroubled.org/cvm/cvm.html for more information.

There are three methods to install cvm on Debian 10. 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 Debian. 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 Debian 10

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 Debian 10, we can use the command below:

sudo apt-get -y autoremove cvm

Remove cvm Configurations and Data

To remove cvm configuration and data from Debian 10 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

Dependencies

cvm have the following dependencies:

References

Summary

In this tutorial we learn how to install cvm package on Debian 10 using different package management tools: apt, apt-get and aptitude.