Mastering Linux Security and Hardening

How AppArmor can benefit a systems administrator

AppArmor is the Mandatory Access Control system that comes installed with the SUSE and the Ubuntu families of Linux. Although it's designed to do pretty much the same job as SELinux, its mode of operation is substantially different:

• SELinux labels all system processes and all objects such as files, directories, or network ports. For files and directories, SELinux stores the labels in their respective inodes as extended attributes. (An inode is the basic filesystem component that contains all information about a file, except for the file name.)
• AppArmor uses pathname enforcement, which means that you specify the path to the executable file that you want for AppArmor to control. This way, there's ...