How To Install checkpolicy on CentOS 8

checkpolicy is SELinux policy compiler

Introduction

In this tutorial we learn how to install checkpolicy on CentOS 8.

What is checkpolicy

Security-enhanced Linux is a feature of the Linux\xae 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\xae, Role-based Access Control, and Multi-level Security. This package contains checkpolicy, the SELinux policy compiler. Only required for building policies.

We can use yum or dnf to install checkpolicy on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install checkpolicy.

Install checkpolicy on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install checkpolicy using dnf by running the following command:

sudo dnf -y install checkpolicy

Install checkpolicy on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install checkpolicy using yum by running the following command:

sudo yum -y install checkpolicy

How To Uninstall checkpolicy on CentOS 8

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

sudo dnf remove checkpolicy

checkpolicy Package Contents on CentOS 8

/usr/bin/checkmodule
/usr/bin/checkpolicy
/usr/bin/sedismod
/usr/bin/sedispol
/usr/lib/.build-id
/usr/lib/.build-id/55
/usr/lib/.build-id/55/996cd9e8dafce5b381ab3727524a50f9214418
/usr/lib/.build-id/89
/usr/lib/.build-id/89/c8a4c23adaaa635f459e35709ef895575d8b82
/usr/lib/.build-id/a5
/usr/lib/.build-id/a5/a8e5013526fc4b46d001c285157808a1087dfc
/usr/lib/.build-id/e4
/usr/lib/.build-id/e4/6a29270f3f24f5948dde3654e8774ae7b6ba08
/usr/share/licenses/checkpolicy
/usr/share/licenses/checkpolicy/COPYING
/usr/share/man/man8/checkmodule.8.gz
/usr/share/man/man8/checkpolicy.8.gz
/usr/share/man/ru/man8/checkmodule.8.gz
/usr/share/man/ru/man8/checkpolicy.8.gz

References

Summary

In this tutorial we learn how to install checkpolicy on CentOS 8 using yum and dnf.