Gentoo Archives: gentoo-user

From: Michael Orlitzky <mjo@g.o>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Choice of TLD for internal network
Date: Mon, 18 Dec 2017 13:57:06
In Reply to: [gentoo-user] Choice of TLD for internal network by Peter Humphrey
1 On 12/17/2017 09:05 PM, Peter Humphrey wrote:
2 > Hello list,
3 >
4 > I've been running Linux systems since 1994, calling my private LAN mynet
5 > (bowdlerised). Now I come to install neth server on one machine, it insists
6 > that I tell it a domain name with at least two dots in it. But I don't have
7 > a standard TLD.
8 >
9 > What do you all call your local LANs? Following Google hints, it looks as
10 > though I may have to change all .mynet references to .mynet.internal.
12 You should probably buy a TLD. It's stupid, but there are no reserved
13 top-level domain names for internal use. There used to be four[0],
15 * test
16 * example
17 * invalid
18 * localhost
20 There was no proscribed behavior for those TLDs, so you were free to use
21 them for your internal network. Then along came rfc6761[1], which tells
22 people how to treat those four names. In particular,
24 * anything.localhost is out, because users may assume that all
25 addresses resolve back to the loopback interface (e.g.
27 * anything.invalid is out, because users may assume that the domain
28 does not exist.
30 * anything.example is out, because it's reserved for documentation.
32 And that leaves you with "test." Using "test" isn't perfect, because
33 caching resolvers may not support it: "Caching DNS servers SHOULD offer
34 a configuration option..." But more importantly, having "test" on the
35 end of all your production hostnames is stupid.
37 So that really leaves you with... nothing. Don't use ".internal" or any
38 other name that isn't reserved or that you don't own[2].
40 For now, your best option is to buy a domain.
43 [0]
44 [1]
45 [2]


Subject Author
Re: [gentoo-user] Choice of TLD for internal network Peter Humphrey <peter@××××××××××××.uk>
Re: [gentoo-user] Choice of TLD for internal network Wol's lists <antlists@××××××××××××.uk>
[gentoo-user] Re: Choice of TLD for internal network Ian Zimmerman <itz@××××××××××××.org>