Let us learn how to Enable AppArmor support with the support of our Docker hosting support services at Bobcares.

Why Enable AppArmor support

AppArmor is a Linux kernel security enhancement in the style of MAC. It follows a task-focused strategy, with task “profiles” produced and loaded from user space.

Tasks on the system that lack a profile run in an unconfined state, which is similar to regular Linux DAC permissions.

How to Enable AppArmor Support?

To activate AppArmor support on a Linux system, perform the following steps:

Check AppArmor Availability

To begin, confirm that the Linux distribution supports and has AppArmor installed.

AppArmor is widely accessible on Ubuntu and other Linux distributions, however, it is not always acitve by default.

Install AppArmor

If AppArmor, is not set up, we may install it using the Linux distribution’s package manager. This is the first step to enable AppArmor support.

On Ubuntu or Debian-based computers, for example, we may run the following command:

sudo apt-get install apparmor

Enable the AppArmor Service

Start and enable the AppArmor support service so that it starts when the system boots. Depending on the distribution, we can call the service apparmor or apparmor.service.

Use the system’s relevant command. On Ubuntu, for example, use:

sudo systemctl enable apparmor
sudo systemctl start apparmor

Verify AppArmor Status

Check the status of AppArmor to confirm it is operational. The following command should be used:

sudo systemctl status apparmor

The result should show that the service is active and working correctly.

Configure AppArmor Profiles

Profiles are used by AppArmor to specify security policies for particular apps. Depending on the distribution, we may or may not have pre-configured AppArmor profiles.

Typically, profiles are saved in:

/etc/apparmor.d/

Enable AppArmor for Applications

To activate AppArmor for individual apps, we must first ensure that the correct AppArmor profile is in place and enforced.

Based on the requirements of the application, we may either alter current profiles or build new ones.

Please keep in mind that the particular commands and stages may differ based on the Linux distribution.

The examples here are for Ubuntu, one of the most popular distributions that supports AppArmor.

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Conclusion

To sum up we have now seen how to Enable AppArmor support with the support of our tech support team.