How To Install ucarp on Debian 9

In this tutorial we learn how to install ucarp on Debian 9. ucarp is user-space replacement to VRRP – automatic IP fail-over

Introduction

In this tutorial we learn how to install ucarp on Debian 9.

What is ucarp

ucarp is:

UCARP allows a pair of hosts to share common virtual IP addresses in order to provide automatic fail-over. It is a portable user-land implementation of the secure and patent-free Common Address Redundancy Protocol (CARP, OpenBSD’s alternative to the VRRP).

Strong points of the CARP protocol are: very low overhead, cryptographically signed messages, interoperability between different operating systems and no need for any dedicated extra network link between redundant hosts.

There are three methods to install ucarp 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 ucarp Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install ucarp using apt-get by running the following command:

sudo apt-get -y install ucarp

Install ucarp Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install ucarp using apt by running the following command:

sudo apt -y install ucarp

Install ucarp 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 ucarp using aptitude by running the following command:

sudo aptitude -y install ucarp

How To Uninstall ucarp on Debian 9

To uninstall only the ucarp package we can use the following command:

sudo apt-get remove ucarp

Uninstall ucarp And Its Dependencies

To uninstall ucarp and its dependencies that are no longer needed by Debian 9, we can use the command below:

sudo apt-get -y autoremove ucarp

Remove ucarp Configurations and Data

To remove ucarp configuration and data from Debian 9 we can use the following command:

sudo apt-get -y purge ucarp

Remove ucarp configuration, data, and all of its dependencies

We can use the following command to remove ucarp configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge ucarp

Dependencies

ucarp have the following dependencies:

References

Summary

In this tutorial we learn how to install ucarp package on Debian 9 using different package management tools: apt, apt-get and aptitude.