How To Install ca-cacert on Kali Linux

Introduction

In this tutorial we learn how to install ca-cacert on Kali Linux.

What is ca-cacert

ca-cacert is:

This package provides CAcert.org (sub-)root certificates in PEM format. Root certificates allow SSL-based applications to check for the authenticity of certificates issued by the CAcert authority.

CAcert.org is a community-driven Certificate Authority that issues certificates to the public for free.

CAcert’s goal is to promote awareness and education on computer security through the use of encryption, specifically by providing cryptographic certificates. These certificates can be used to digitally sign and encrypt email, authenticate and authorize users connecting to websites and secure data transmission over the internet. Any application that supports the Secure Socket Layer Protocol (SSL or TLS) can make use of certificates signed by CAcert, as can any application that uses X.509 certificates, e.g. for encryption or code signing and document signatures.

Please note that CAcert may not yet comply with RFC 3647 or similar standards.

There are three methods to install ca-cacert on Kali Linux. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install ca-cacert Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install ca-cacert

Install ca-cacert Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install ca-cacert

Install ca-cacert Using aptitude

If you want to follow this method, you might need to install aptitude on Kali Linux first since aptitude is usually not installed by default on Kali Linux. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install ca-cacert using aptitude by running the following command:

sudo aptitude -y install ca-cacert

How To Uninstall ca-cacert on Kali Linux

To uninstall only the ca-cacert package we can use the following command:

sudo apt-get remove ca-cacert

Uninstall ca-cacert And Its Dependencies

To uninstall ca-cacert and its dependencies that are no longer needed by Kali Linux, we can use the command below:

sudo apt-get -y autoremove ca-cacert

Remove ca-cacert Configurations and Data

To remove ca-cacert configuration and data from Kali Linux we can use the following command:

sudo apt-get -y purge ca-cacert

Remove ca-cacert configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge ca-cacert

Dependencies

ca-cacert have the following dependencies:

• ca-certificates

References

• ca-cacert website

Summary

In this tutorial we learn how to install ca-cacert package on Kali Linux using different package management tools: apt, apt-get and aptitude.