From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mummy.ncsc.mil (mummy.ncsc.mil [144.51.88.129]) by tarius.tycho.ncsc.mil (8.13.1/8.13.1) with ESMTP id n2BHjRsO014545 for ; Wed, 11 Mar 2009 13:45:27 -0400 Received: from house.lunarmania.com (jazzhorn.ncsc.mil [144.51.5.9]) by mummy.ncsc.mil (8.12.10/8.12.10) with ESMTP id n2BHjQFt003427 for ; Wed, 11 Mar 2009 17:45:26 GMT Received: from 78-3-249-56.adsl.net.t-com.hr ([78.3.249.56] helo=[192.168.1.2]) by house.lunarmania.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69) (envelope-from ) id 1LhSUV-0004xE-Fg for selinux@tycho.nsa.gov; Wed, 11 Mar 2009 10:45:16 -0700 Message-ID: <49B7F893.9040706@rubix.com> Date: Wed, 11 Mar 2009 18:44:51 +0100 From: Andy Warner MIME-Version: 1.0 To: SELinux List Subject: Significance of the level on a port configuration Content-Type: multipart/alternative; boundary="------------060104000407010500050202" Sender: owner-selinux@tycho.nsa.gov List-Id: selinux@tycho.nsa.gov This is a multi-part message in MIME format. --------------060104000407010500050202 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Can someone give me a quick overview of the significance (i.e., the MLS behavior) of the port level for SELinux. I am attempting to have two connection from untrusted hosts that are statically labeled (with netlabelctl) one at high (s0) and one at low (s1). Both connections will be made over the same port number. The service accepting the connections runs at SystemHigh on Fedora 9 with MLS policy. What difference does the level of the port make ? Assume all TE rules are satisfied for the context of my question. Thanks, Andy --------------060104000407010500050202 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Can someone give me a quick overview of the significance (i.e., the MLS behavior) of the port level for SELinux.

I am attempting to have two connection from untrusted hosts that are statically labeled (with netlabelctl) one at high (s0) and one at low (s1). Both connections will be made over the same port number. The service accepting the connections runs at SystemHigh on Fedora 9 with MLS policy. What difference does the level of the port make ? Assume all TE rules are satisfied for the context of my question.

Thanks,

Andy

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