[dns-operations] TLD(s) for private use

Andrew Sullivan ajs at anvilwalrusden.com
Wed Sep 6 16:44:23 UTC 2017

On Wed, Sep 06, 2017 at 10:51:29AM -0500, Chris Adams wrote:
> It would be easy to avoid collisions though (unlike IP addresses, DNS
> can be arbitrary length, up to a limit).  Rather than use foo.internal,
> prepend a registered domain, like foo.dns-oarc.net.internal.

And that nicely illustrates why this isn't a problem that needs
solving: unlike the IPv4 space, we have plenty of octets in the 255
limit.  So, there is no need for people go to stomping about on some
supposedly shared "private" space.  If you can do
foo.dns-oarc.net.internal, you can just as easily do
internal.foo.dns-oarc.net.  The analogy with RFC1918 address space is
just a hammer looking for nails.

Bet regards,


Andrew Sullivan
ajs at anvilwalrusden.com

More information about the dns-operations mailing list