## Recognize alternate authorization schemes ##

[Author](authors.html): _name_ _[[contact]]_ _[[BSD_flavour]]_

[Reviewer](technical_reviewers.html): _name_ _[[contact]]_ _[[BSD_flavour]]_

[Reviewer](technical_reviewers.html): _name_ _[[contact]]_ _[[BSD_flavour]]_

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### Concept ###

Admins should understand basic authorization theory and how MAC
and ACLs extend the features provided by the standard Unix permissions.


### Introduction ###

TODO: is this section needed? is "mandatory" controls introduced elsewhere?

See section [[View_and_modify_ACLs]] for more information on ACLs, including ACL attributes.

Note that standard Unix permissions can also be extended by using file flags
as covered in section [[View_and_modify_file_flags]].


### Examples ###


### Practice Exercises ###


### More information ###

mac(4) and acl(3) on FreeBSD; systrace(1) on NetBSD and OpenBSD


