[142271] in North American Network Operators' Group
Re: unqualified domains, was ICANN to allow commercial gTLDs
daemon@ATHENA.MIT.EDU (Tony Finch)
Mon Jun 20 17:03:59 2011
In-Reply-To: <20110620074305.7645410EE739@drugs.dv.isc.org>
From: Tony Finch <dot@dotat.at>
Date: Mon, 20 Jun 2011 22:03:02 +0100
To: Mark Andrews <marka@isc.org>
Cc: Paul Vixie <vixie@isc.org>, "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 20 Jun 2011, at 08:43, Mark Andrews <marka@isc.org> wrote:
>=20
> There is also no such thing as "in-bailiwick glue for the TLD=E2=80=99s DN=
S servers". The root zone contains glue for TLDs. No TLD zone contains glu=
e for TLDs.
"In-bailiwick" means that the nameservers for a zone are under the apex of t=
hat zone. So the uk TLD servers are in-bailiwick: they are all of the form n=
sX.nic.uk for various X. The com TLD servers are not in-bailiwick since they=
are all under gtld-servers.net; similarly the .aero servers are under .de, .=
ch, .info, .org. If a zone has in-bailiwick nameservers then it must have gl=
ue in the parent zone. It is possible for a TLD to have no glue of its own (=
like .com) if all of its nameservers are under other TLDs. It is possible fo=
r a TLD to have no glue at all if it shares no nameservers with any other TL=
D - so .com has glue (shared with .net) but the .aero nameservers are all un=
der other TLDs and are different from those TLDs' servers, so it can work wi=
thout glue.
Tony.
--
f.anthony.n.finch <dot@dotat.at> http://dotat.at/=
