[84504] in North American Network Operators' Group
Re: mail service with no mx (was - Re: Computer systems blamed for
daemon@ATHENA.MIT.EDU (Dave Crocker)
Wed Sep 14 02:10:41 2005
Date: Tue, 13 Sep 2005 23:09:54 -0700
From: Dave Crocker <dhc2@dcrocker.net>
Reply-To: dcrocker@bbiw.net
To: "Steven M. Bellovin" <smb@cs.columbia.edu>
Cc: Adam McKenna <adam@flounder.net>, nanog@nanog.org
In-Reply-To: <20050914013225.AC7423BFF7F@berkshire.machshav.com>
X-Songbird-From: dhc2@dcrocker.net
Errors-To: owner-nanog@merit.edu
>> Application layer firewalls have existed for at least 6 years.
>>
> Make that 15....
I suspect that claiming to that they existed farther back than 1990 would
require careful debate about the functionality.
Taking it at its most general: a boundary barrier service that mediated
particular application exchanges between an "interior" Administrative
Environment, versus the rest of the public network. One can reasonably argue
than any such mediation has a security component to it.
Therefore one could argue that firewall functionality was around at least 25
years ago -- there were a number of email boundary gateway mediating services
by then -- and very probably back to 1973. (I just know that some MIT type is
going to claim pre-1970, given the generality of the definition I offered.)
d/
--
Dave Crocker
Brandenburg InternetWorking
+1.408.246.8253
dcrocker a t ...
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