How To Install libselinux1 on Debian 9
Introduction
In this tutorial we learn how to install libselinux1 on Debian 9.
What is libselinux1
libselinux1 is:
This package provides the shared libraries for Security-enhanced Linux that provides interfaces (e.g. library functions for the SELinux kernel APIs like getcon(), other support functions like getseuserbyname()) to SELinux-aware applications. 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.
libselinux1 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 may use the shared libsepol to manipulate the binary policy if necessary (e.g. to downgrade the policy format to an older version supported by the kernel) when loading policy.
There are three methods to install libselinux1 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 libselinux1 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libselinux1 using apt-get by running the following command:
sudo apt-get -y install libselinux1
Install libselinux1 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libselinux1 using apt by running the following command:
sudo apt -y install libselinux1
Install libselinux1 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 libselinux1 using aptitude by running the following command:
sudo aptitude -y install libselinux1
How To Uninstall libselinux1 on Debian 9
To uninstall only the libselinux1 package we can use the following command:
sudo apt-get remove libselinux1
Uninstall libselinux1 And Its Dependencies
To uninstall libselinux1 and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove libselinux1
Remove libselinux1 Configurations and Data
To remove libselinux1 configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge libselinux1
Remove libselinux1 configuration, data, and all of its dependencies
We can use the following command to remove libselinux1 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libselinux1
Dependencies
libselinux1 have the following dependencies:
References
Summary
In this tutorial we learn how to install libselinux1 package on Debian 9 using different package management tools: apt, apt-get and aptitude.