[dns-operations] Missing .us and GTLD records??

Doug Barton dougb at dougbarton.us
Sun May 23 00:36:42 UTC 2010

On 5/20/2010 11:07 PM, bert hubert wrote:
> It might be a grand idea to automatically switch on IPv6 for outgoing
> queries if root-priming succeeds over V6.
> And perhaps switch IPv6 off again if none of the roots is reachable over
> IPv6.
> Or perhaps I'm inventing the wheel here ;-)
> Would this make sense (operationally?).

I would not want to see this happen automatically, no. And that's not an anti-IPv6 bias, that's a "don't do ANYTHING that changes the operational configuration of the name server automatically" bias.

OTOH, what WOULD be useful (and in fact I with BIND did this too) is if the server thinks it SHOULD have v6 connectivity, but it doesn't, it should issue a loud, and perhaps even repeated warning in the logs, preferably with a suggestion for a remediation strategy.

For example, the default FreeBSD kernel comes with IPv6 networking bits compiled in, although the default configuration (interfaces, routing, etc.) has it disabled. For some of our users they have problems with named trying IPv6, timing out, then moving to IPv4. What we suggest to them is to add the -4 option to named's flags, but that usually only happens after drama + sending questions to mailing lists, etc.




	... and that's just a little bit of history repeating.
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