How To Install mcstrans on Ubuntu 22.04

In this tutorial we learn how to install mcstrans on Ubuntu 22.04. mcstrans is SELinux core policy utilities (mcstrans utilities)

Introduction

In this tutorial we learn how to install mcstrans on Ubuntu 22.04.

What is mcstrans

mcstrans is:

Security-enhanced Linux is a patch of the Linux® kernel and a number of utilities with enhanced security functionality designed to add mandatory access controls to Linux. The Security-enhanced Linux kernel contains new architectural components originally developed to improve the security of the Flask operating system. These architectural components provide general support for the enforcement of many kinds of mandatory access control policies, including those based on the concepts of Type Enforcement®, Role-based Access Control, and Multi-level Security.

This package contains mcstransd to map a machine readable sensitivity label to a human readable form. The sensitivity label is comprised of a sensitivity level (always s0 for MCS and anything from s0 to s15 for MLS) and a set of categories. A ranged sensitivity label will have a low level and a high level where the high level will dominate the low level. Categories are numbered from c0 to c1023. Names such as s0 and c1023 and not easily readable by humans, so mcstransd translated them to human readable labels such as SystemLow and SystemHigh.

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

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

sudo apt-get update

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

sudo apt-get -y install mcstrans

Install mcstrans Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install mcstrans

Install mcstrans 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 mcstrans using aptitude by running the following command:

sudo aptitude -y install mcstrans

How To Uninstall mcstrans on Ubuntu 22.04

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

sudo apt-get remove mcstrans

Uninstall mcstrans And Its Dependencies

To uninstall mcstrans and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:

sudo apt-get -y autoremove mcstrans

Remove mcstrans Configurations and Data

To remove mcstrans configuration and data from Ubuntu 22.04 we can use the following command:

sudo apt-get -y purge mcstrans

Remove mcstrans configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge mcstrans

References

Summary

In this tutorial we learn how to install mcstrans package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.