Install apparmor by entering the following commands in the terminal:
sudo apt update sudo apt install apparmor
Description:
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.
Homepage: http://apparmor.net/
Version: 2.12-4ubuntu5
Section: admin