[dns-operations] Zone cut on _tcp.example.ca

David C Lawrence tale at akamai.com
Tue Feb 9 15:15:05 UTC 2016

Jacques Latour writes:
> One of our d-zone (secondary dns service) customers wants to a zone that
> looks like this:  _tcp.example.ca

Yep, it's fine.  Doesn't violate the LDH rules as long as their
aren't any address records associated with that name or its

> But then you could end up with RR like this;  _http._tcp.jack._tcp.cira.ca

There's nothing intrinsically wrong with that name.

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