AppArmor

AppArmor ("Application Armor") is a Linux kernel security module that allows system administrators to restrict programs' capabilities with per-program profiles. Profiles can allow capabilities like network access, raw socket access, and the permission to read, write, or execute files on matching paths. AppArmor supplements the traditional Unix discretionary access control (DAC) model by providing mandatory access control (MAC). It has been partially included in the mainline Linux kernel since version 2.6.36. Canonical has supported the development of AppArmor since 2009. In addition to manually creating profiles, AppArmor includes a learning mode, in which profile violations are logged, but not prevented. This log can then be used for generating an AppArmor profile, based on the program's typical behavior. AppArmor is implemented using the Linux Security Modules (LSM) kernel interface. AppArmor is offered in part as an alternative to SELinux, which critics consider difficult for administrators to set up and maintain. Unlike SELinux, which is based on applying labels to files, AppArmor works with file paths.