refresh / expire

[Michael Kjorling]

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On Apr 8 2002 21:14 -0000, bert hubert wrote:

> I was wondering, is there any valid reason for 'expire'? I've been bitten a
> few times by secondaries dropping a zone during prolonged outages. I'm not
> sure why I would ever want that to happen.
>
> Just wondering.
>
> Regards,
>
> bert

Yes. If the slave can't get a fresh copy of the data (or verify that
it's copy is "current" as defined by the SOA RR's serial number field)
for a longer period of time (the expire time) it will consider it
outdated, past its use by date, rotten, whatever term you like to use.

If you have such a long outage that any reasonable expiry time is
reached, you have other problems to fix as well... start by promoting
one of your slaves to master.


Michael Kjörling

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Michael Kjörling  --  Programmer/Network administrator  ^..^
Internet: michael at kjorling.com -- FidoNet: 2:204/254.4   \/
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``And indeed people sometimes speak of man's "bestial" cruelty, but
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