Date: Wed, 10 May 2000 21:15:25 -0700 From: "Kevin Oberman" <oberman@es.net> To: "Dan O'Connor" <dan@mostgraveconcern.com> Cc: "James A Wilde" <james.wilde@telia.com>, "FreeBSD-questions" <freebsd-questions@FreeBSD.ORG> Subject: Re: Offtopic - DMZ Message-ID: <200005110415.e4B4FPn25113@ptavv.es.net> In-Reply-To: Your message of "Wed, 10 May 2000 18:32:41 PDT." <019301bfbae9$1491a9a0$0200000a@danco>
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I really can't agree that a 'bastion host' or any host is a DMZ. The term was first used (to the best of my knowledge) back when NASA set up the first "NAP", the Federal Internet Exchange or FIX. The FIXes connected the four existing Internet national back about a decade ago. These were the old NSFnet, MILnet, NASA Science Internet (NSI), and the Energy Sciences Network (ESnet). When Milo Medin built the first FIX (an Ethernet) to replace the one mail bridges, he used military terms to describe its functions and used the term De-Militarized Zone) DMZ for the neutral networks segments. Later, when the NSF regional nets got started, the term was applied to the physical links between the routers of the regionals and the national backbones. Once again, these were typically Ethernet. They usually involved only two routers, though, in some cases there were three as the connection often occurred at facilities that had connections to both nets. The result was a site router, and a router from each of the national nets. The term also became the one used to describe the link between an ISP and a customer, when the customer ran its own network. It's appropriate as the link belongs to neither the ISP or the customer. It's a DMZ. R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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