Date: Wed, 24 Nov 2004 02:29:27 +0100 From: Hexren <me@hexren.net> To: Jonathon McKitrick <jcm@FreeBSD-uk.eu.org> Cc: freebsd-questions@freebsd.org Subject: Re[2]: 4 part domain names Message-ID: <8763344284.20041124022927@hexren.net> In-Reply-To: <20041124000014.GA83249@dogma.freebsd-uk.eu.org> References: <20041123233501.GA82229@dogma.freebsd-uk.eu.org> <5557305861.20041124004849@hexren.net> <20041124000014.GA83249@dogma.freebsd-uk.eu.org>
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JM> On Wed, Nov 24, 2004 at 12:48:49AM +0100, Hexren wrote: JM> : Now add to that picture that every subdomain could be an alias for another JM> : domain or point to an IP address, which incase of the IP address is JM> : meaning a real machine. JM> So that means that the right-most portion of the subdomain would be either JM> the aliased domain of another machine or an IP address, right? So does that JM> mean us.510.mail.yahoo.com could be us.510.some_secret_domain.xxx?? Or that JM> it could be a new domain within a private network? Or either? --------------------------------------------- Every unique combination of subdomain.domain.tld could point to an arbitray other URL or IP. For example us.510.mail.example.com = example.com de.510.mail.example.com = europe.mail.example.com us.487.mail.example.com = 10.0.0.1 us.512.mail.example.com = 192.168.0.1 mail.yahoo.com = nowhere (teher is no entry in the dns for that URL) The point I am trying to make ist that dns only defines a structure for data. The fact that the data stored in that structure tends to be orderly in some sort is the result of that order making administering and using the stored data easier (techs are lazy people after all). But something like zdfdfjkb.12462323df.example.com would be valid even though it would contradict the point of using dns to take the burden of remembering complex data (IPs) from people. Hexren
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