How To Install libselinux on Fedora 34

libselinux is SELinux library and simple utilities SELinux library and simple utilities

Introduction

In this tutorial we learn how to install libselinux on Fedora 34.

What is `libselinux`

Security-enhanced Linux is a feature 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. libselinux provides an API for SELinux applications to get and set process and file security contexts and to obtain security policy decisions. Required for any applications that use the SELinux API. libselinux 3.2 1.fc34 i686 89 k libselinux-3.2-1.fc34.src.rpm fedora SELinux library and simple utilities https Public Domain Security-enhanced Linux is a feature 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. libselinux provides an API for SELinux applications to get and set process and file security contexts and to obtain security policy decisions. Required for any applications that use the SELinux API.

We can use yum or dnf to install libselinux on Fedora 34. In this tutorial we discuss both methods but you only need to choose one of method to install libselinux.

Install libselinux on Fedora 34 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

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

sudo dnf -y install libselinux

Install libselinux on Fedora 34 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

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

sudo yum -y install libselinux

How To Uninstall libselinux on Fedora 34

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

sudo dnf remove libselinux

libselinux Package Contents on Fedora 34

/run/setrans
/usr/lib/.build-id
/usr/lib/.build-id/20
/usr/lib/.build-id/20/259e7d085d48fec4c89de5952a259f47e6947b
/usr/lib/tmpfiles.d/libselinux.conf
/usr/lib64/libselinux.so.1
/usr/share/licenses/libselinux
/usr/share/licenses/libselinux/LICENSE
/run/setrans
/usr/lib/.build-id
/usr/lib/.build-id/99
/usr/lib/.build-id/99/1f60ec6b0d84be654ffdfeffbed261f4dfbd80
/usr/lib/libselinux.so.1
/usr/lib/tmpfiles.d/libselinux.conf
/usr/share/licenses/libselinux
/usr/share/licenses/libselinux/LICENSE

References

[libselinux website](https://github.com/SELinuxProject/selinux/wiki https://github.com/SELinuxProject/selinux/wiki)

Summary

In this tutorial we learn how to install libselinux on Fedora 34 using yum and dnf.