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+**WARNING** this page is being heavily edited
+
+Using AppArmor to confine users and do RBAC
+===========================================
+
+To achieve RBAC apparmor uses a combination of
+two[PAM](http://en.wikipedia.org/wiki/Pluggable_Authentication_Modules)
+security modules. The pam\_cap.so module is used to raise a users
+privileges while the pam\_apparmor.so module is used to further
+restrict the users processes from what would be possible with the
+granted capabilities.
+
+This document only covers the suggested method of achieving RBAC
+in the current version of AppArmor (2.5), documentation on earlier
+versions is linked below.
+
+Requirements
+============
+
+-   pam\_cap.so
+-   pam\_apparmor.so
+
+Setting up pam\_cap.so
+======================
+
+This is just a quick overview of how to set up the pam\_cap.so module,
+for a more in depth explanation see following links
+
+-   [posix file caps](http://www.friedhoff.org/posixfilecaps.html)
+-   [linuxjournal](http://www.linuxjournal.com/article/10249)
+
+installing pam\_cap.so
+----------------------
+
+-   Ubuntu
+    -   from a terminal type - `sudo apt-get install libcap2 libcap2-bin`
+    -   synaptics - search for libcap2 and select libcap2, libcap2-bin for installation and click apply
+
+configuring PAM to use pam\_cap.so
+----------------------------------
+
+Editing the pam\_cap.so configuration file
+------------------------------------------
+
+/etc/security/capability.conf
+
+Setting up pam\_apparmor.so
+===========================
+
+Use pam\_apparmor to assign profiles and or profile namespaces to a
+user or process.
+
+installing pam\_apparmor.so
+---------------------------
+
+-   Ubuntu
+    -   from a terminal type - `sudo apt-get install libpam-apparmor`
+
+configuring PAM to use pam\_apparmor.so
+---------------------------------------
+
+Editing the pam\_apparmor.so configuration file
+-----------------------------------------------
+
+### Specifying profiles
+
+### Specifying namespaces
+
+RBAC Policy choices
+===================
+
+AppArmor provides three alternative ways that RBAC policy can be
+authored.
+
+Single profile
+--------------
+
+Instead of breaking up permission per application (standard AppArmor
+model), all permissions are encapsulated by a single profile that
+confines all applications run by the user. This results
+
+ix transitions Any application that needs
+
+Profile tree
+------------
+
+Profile Namespace
+-----------------
+
+Profile Stacking (AppArmor 2.6)
+-------------------------------
+
+AppArmor 2.6 opens up another possible method of applying RBAC policy,
+by allowing for composition of profiles through profile stacking. This
+allow for the application of the regular profile set and a user
+confining profile without having to create a custom profile tree or
+custom profile namespace.
+
+To do this a user profile is created that encompasses all the
+permissions the user should have, and then a new profile layer is
+created that is pointed at the other policy that should be applied
+(eg. the standard set of profiles). Now any tasks run by the confined
+user will have a combined policy applied.
+
+### user profile considerations
+
+-   leaving / collapsing the stack??
+
+Outer single user profile + layer of regular profiles or new namespace
+
+Links
+=====
+
+AppArmor has evolved over time, and with each new version features have
+been added that affect how RBAC style confinement can be achieved in
+AppArmor. In general each version of AppArmor builds on the previous
+version so that the techniques used in previous version can still be
+used. However each newer version either adds features that refine,
+and improve on previous techniques, or introduces new techniques
+making RBAC style policy easier and more flexible.
+
+-   1.x - AppArmor versions prior to 2.0 exist only in the linux distro Immunix and are not covered here.
+-   [ RBAC in AppArmor 2.0](RBAC_2_0) - Basic techniques with some notes on improvements
+-   [ RBAC in AppArmor 2.1](RBAC_2_1) - openSUSE 10.3, Ubuntu 7.10 (Gutsy Gibbon), 2.1+ - Ubuntu 8.04 (Hardy Heron)
+-   [ RBAC in AppArmor 2.3-2.4](RBAC_2_3) - openSUSE 11.0, openSUSE 11.1, Ubuntu 8.10 (Intrepid Ibex), Ubuntu 9.04, Ubuntu 9.10 (Karmic)
+-   [ RBAC in AppArmor 2.5](RBAC_2_5) - development versions
+-   [ Multilevel style security](AppArmorMLS) can be achieved by extending in AppArmor ??? by extending the RBAC techniques.
+