Kelly, The “fantasy tld” is a really bad idea. There are several hundred new tld’s coming online and the topic of “collisions” between a fake internal and real external TLD has been the topic of much discussion (Google “icann name collisions”).
I definitely vote for the registered name. If you are worried about split
brain, most DNS software supports the concept of zones so you can ensure that
only your internal network sees your internal naming..
Wayne
On Jun 23, 2014, at 1:28 PM, Kelly Setzer <kelly.set...@wnco.com> wrote:
> What is current thinking/accepted practice for internal domain names?
>
> * Registered domain name (e.g., somecompany.com)
> * Fantasy tld (e.g., .mycorp)
> * .local (collides zeroconf/mDNS)
>
> This is for use within a corporate/campus setting. In times past, I have
> taken the fantasy approach. However, colleagues have pointed out that the
> growing list of new gTLDs and branded TLDs could collide with a fantasy
> TLD.
>
> RFC 2606 seems to suggest using a registered domain. That¹s great except
> that split-brain inevitably creeps into the equation. Is this a case of
> choosing the ³least worst² option?
>
> Thanks,
> Kelly
>
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