On 23 Jun 2014, at 21:28, Kelly Setzer <kelly.set...@wnco.com> wrote:

> What is current thinking/accepted practice for internal domain names?
> 
> 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?

IMO split DNS using a properly registered domain name is the way to go. That 
way, you can be *sure* the name won't get hi-jacked for something else in a way 
that seriously disrupts things for your organisation. [Just like you wouldn't 
pluck IP addresses out of the air to number your network and hope nobody else 
will ever use the same prefix.] ICANN policy on TLD naming is subject to 
change. As is IETF thinking on which domain names are "OK" for private use.

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