[jeraklo]

Posted from www.onlamp.com/bsd (http://www.onlamp.com/bsd) : "ACLs came to BSD as part of the TrustedBSD (http://www.trustedbsd.org/) project. As the name suggests, they give a user finer access control over permissions." Read more here (http://www.onlamp.com/pub/a/bsd/2005/09/22/FreeBSD_Basics.html).