DNS update, when is the zone file updated ??

[Mark.Andrews at nominum.com]

> Hi,
> 
> Running 8.2.2-P5 on FreeBSD, and doing som experiments with rfc2136
> updates, my real concern is that the master zone file, doesn't seem
> to be updated, unless named is restarted, is there any way to force
> the file to be sync'ed on periodic basis ?

	It does get synced.

> 
> rfc2135 paragraph 3.5 states
> 
> --quote start--
> 
> 3.5 - Stability
> 
>    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.  It is reasonable for a server to store only the update records
>    as long as a system reboot or power failure will cause these update
>    records to be incorporated into the zone the next time the server is
>    started.  It is also reasonable for the server to copy the entire
>    modified zone to nonvolatile storage after each update operation,
>    though this would have suboptimal performance for large zones.
> 
> --quote end--
> 
> And the update gets written in the zone.log and zone.ixfr files, but not
> in the zone file itself.

	This is stable storage.
> 
> The reason I'm concerened is that we still on occation do manual changes
> to the zone files, and afterwards do a 'ndc reload zone', but I expect things
> to break, if the zone file that we're editing is not up to date, or ??

	Then unconfigure dynamic updates, reload, edit, reload, check logs
	then reconfigure dynamic updates and reload if no errors reported.

	Or just use nsupdate to perform the changes.

	Mark
> 
> -- 
> Jesper Skriver CCIE #5456 
> 
> 
--
Mark Andrews, Nominum Inc. / Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at nominum.com