Date: Wed, 17 Dec 2008 10:54:30 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Gary Kline <kline@thought.org> Cc: Peter Giessel <pgiessel@mac.com>, FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: looking for a secondary. Message-ID: <4948DA66.6010906@infracaninophile.co.uk> In-Reply-To: <20081217051959.GD11226@thought.org> References: <20081216234235.GA4593@thought.org> <104079537551833802407591023971219248307-Webmail@me.com> <4E4E9B506F504C4BB0C1713423F970CF@hermes> <20081217051959.GD11226@thought.org>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig6CAB458A3A911C0544551F71 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Gary Kline wrote: > well, i've certainly asked more ignorant q's, so hrer goes: > what is a ``zone''? i do my own dns and have since 04/2001. A zone is a group of related DNS records all under the same administrativ= e control. 'Related' meaning they all end in the same sequence of labels. = Zone boundaries are determined pretty much by delegation to another set of DNS= servers. So there's a '.org' zone containing primarily the NS records for all the = domains registered under .org. This is distinct from the 'thought.org' zone you control and here all the sub-entries like www.thought.org or plato.thought.org are part of the same zone. It's not an entirely cut an= d dried definition, but you can think of a zone as 'the chunk of the DNS sp= ace that one person controls.' > thought.org is my one domain, altho i've got several virtual=20 > websites. =20 'domain' in DNS-speak is any sequence of labels[*] known to the DNS. So even if the DNS data is a host name, an e-mail address, the name of a whole network, a crypto key for DKIM or DNSSEC or some aggregate service = name hosted across several different servers via SRV records, they're all doma= ins. Domains can be absolute (ie. from the root of the DNS) or relative to som= e intermediate domain. ie. 'thought.org' is your only zone, although you've got several domains within it for virtual websites. Cheers, Matthew [*] And a 'label' is a sequence of characters not including the separator= character '.' -- a domain is hence a sequence of labels joined together by '.' characters. It's conceptually like the distinction between filena= me and path=20 --=20 Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW --------------enig6CAB458A3A911C0544551F71 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEAREIAAYFAklI2nMACgkQ8Mjk52CukIzpPQCfYkJEuR/wJcWDv3Pd19KxPoML LwMAnjRQn4mYnzOhtWZ8kIGc3QEkE7RV =kO8I -----END PGP SIGNATURE----- --------------enig6CAB458A3A911C0544551F71--
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