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From: jhodgson@sjuvax.UUCP (J. Hodgson)
Newsgroups: net.arch
Subject: Re: SUID bits and access lists
Message-ID: <180@sjuvax.UUCP>
Date: Tue, 7-Oct-86 21:27:54 EDT
Article-I.D.: sjuvax.180
Posted: Tue Oct  7 21:27:54 1986
Date-Received: Thu, 9-Oct-86 05:37:16 EDT
References: <8610041140.AA03020@opal.Berkeley.Edu>
Reply-To: jhodgson@sjuvax.UUCP (J. Hodgson)
Organization: St. Joseph's Univ., Phila. PA
Lines: 5
Keywords: Access Control lists.

If you have ever used an operating system that supports acceess control lists 
you will know that it is a memory hog. The SUID bit idea is extremely elegant.
There may be other mechanisms that achieve the same effect but I suspect that 
the SUID idea is the cheapest. Certainly I have not come across anything else 
that is as parsimonious in its resource requirements.