Introduction
In this tutorial we learn how to install apparmor on Ubuntu 20.04.
What is apparmor
apparmor is:
apparmor provides the system initialization scripts needed to use the
AppArmor Mandatory Access Control system, including the AppArmor Parser
which is required to convert AppArmor text profiles into machine-readable
policies that are loaded into the kernel for use with the AppArmor Linux
Security Module.
Task: standard, ubuntu-core
Package: apparmor
Architecture: amd64
Version: 2.13.3-7ubuntu5
Priority: standard
Section: admin
Origin: Ubuntu
Maintainer: Ubuntu Developers [email protected]
Original-Maintainer: Debian AppArmor Team [email protected]
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 1948
Depends: debconf, lsb-base, debconf (>= 0.5) | debconf-2.0, python3:any, libc6 (>= 2.17)
Suggests: apparmor-profiles-extra, apparmor-utils
Breaks: apparmor-profiles-extra (« 1.21), fcitx-data (« 1:4.2.9.1-1ubuntu2), snapd (« 2.44.3+20.04~)
Replaces: fcitx-data (« 1:4.2.9.1-1ubuntu2)
Filename: pool/main/a/apparmor/apparmor_2.13.3-7ubuntu5_amd64.deb
Size: 494300
MD5sum: bf1aa0c15c60f535c7d189e4e85cf7bf
SHA1: bd697b1d3240c67aecd78c939bf7d81e76d8677e
SHA256: 5c62b5e2fe82598a8f3b4b6b1525fe6f590afc5dfd55f241ba307f892b0b0dbe
Homepage: http://apparmor.net/
Description-en: user-space parser utility for AppArmor
apparmor provides the system initialization scripts needed to use the
AppArmor Mandatory Access Control system, including the AppArmor Parser
which is required to convert AppArmor text profiles into machine-readable
policies that are loaded into the kernel for use with the AppArmor Linux
Security Module.
Task: standard, ubuntu-core
There are three methods to install apparmor on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install apparmor Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install apparmor using apt-get by running the following command:
sudo apt-get -y install apparmor
Install apparmor Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install apparmor using apt by running the following command:
sudo apt -y install apparmor
Install apparmor 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 apparmor using aptitude by running the following command:
sudo aptitude -y install apparmor
How To Uninstall apparmor on Ubuntu 20.04
To uninstall only the apparmor package we can use the following command:
sudo apt-get remove apparmor
Uninstall apparmor And Its Dependencies
To uninstall apparmor and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove apparmor
Remove apparmor Configurations and Data
To remove apparmor configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge apparmor
Remove apparmor configuration, data, and all of its dependencies
We can use the following command to remove apparmor configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge apparmor
References
Summary
In this tutorial we learn how to install apparmor package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
