How often does MIT krb5 request for KDC info through DNS?

Nico Williams nico at
Tue Aug 5 16:48:03 EDT 2014

On Tue, Aug 5, 2014 at 3:17 PM, Tom Yu <tlyu at> wrote:
> Nico Williams <nico at> writes:
>> On Tue, Aug 5, 2014 at 2:50 PM,  <Spike_White at> wrote:
>>> Doesn't "name service caching"  via nscd solve this?
>> nscd is specifically about Unix name services, lookups in the
>> hosts(4), passwd(4), ... DBs.
>> We're talking about DNS SRV RR lookups though; nscd does nothing about those.
> I thought the A and AAAA lookups for the addresses of 30+ KDCs were what
> were at issue here, unless I'm misunderstanding something.

Ah, those would get cached by nscd, yes.

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