From mboxrd@z Thu Jan 1 00:00:00 1970 From: presotto@plan9.bell-labs.com To: 9fans@cse.psu.edu Subject: Re: [9fans] authorization schemes (was CORBA) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Message-Id: <20010926174448.1D41219A3E@mail.cse.psu.edu> Date: Wed, 26 Sep 2001 13:44:46 -0400 Topicbox-Message-UUID: f4dd3184-eac9-11e9-9e20-41e7f4b1d025 The real best part was an accidental 'du /|grep pattern' by a user at a high level user made the whole file system useless to anyone of lower classification. Also, terminals were a real pain because their inodes had to change security level whenever someone new logged in, which meant chasing down anything somehow related to them. Not really in the orange book model. Network connections were equally bad. The real lesson of the experiment was that security level classification is hard to live with.