dns_update_log shows dynamic entries deleted

[Tony Finch]

Simon Hobson <dhcp1 at thehobsons.co.uk> wrote:
>
> Other than a small window (I suspect BIND does in fact cache some
> updates in memory for a short time before writing them to disk, and then
> there'll be OS caching), you can "pull the plug" on BIND and it won't
> lose updates.

No, DNS updates are durable. RFC 2136 section 3.5:

   When a zone is modified by an UPDATE operation, the server must
   commit the change to nonvolatile storage before sending a response to
   the requestor or answering any queries or transfers for the modified
   zone.

Tony.
-- 
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