nsupdate and an external database
Simpson, John R
john_simpson at reyrey.com
Mon Aug 10 14:30:09 UTC 2009
>From the lack of response, I take it that there is no good way to have BIND trigger an external database update (or other action) when it receives a DDNS update. At least not without significantly customizing BIND, similar to what Quadritec / Lucent / Alcatel-Lucent did with QIP.
Enhancing ProBIND to support BIND-SDB master servers while keeping traditional configuration files for the slaves looks feasible. Would there be interest in the BIND community for a version of ProBIND with SDB support, or am I re-inventing the wheel?
There are a lot of dead and outdated links for BIND-SDB. Is it viable for long-term use?
> From: Simpson, John R
> Sent: Tuesday, July 28, 2009 4:11 PM
> To: 'bind-users at lists.isc.org'
> Subject: nsupdate and an external database
> Greetings all,
> We have a number of BIND 9.3.4 servers that are managed by ProBIND. We would like to be able to
> use nsupdate to generate dynamic DNS updates, but, of course, any DDNS updates would be lost
> the next time the zone was "pushed" since they aren't reflected in ProBIND's MySQL database.
> Is there any standard way to have BIND notify an external function or program that an update has occurred?
> For example, registering a callback function that would then make the appropriate update to the
> ProBIND database? That's not a perfect solution, since there's still a chance for the zone and the
> external database to be out of sync if the external database update doesn't exactly match the DNS
> update, or if the serial numbers are mishandled. But it seems like that would be a better solution
> than trying to monitor zone/journal files for changes, or parsing log files.
> I've looked at SDB, which would be attractive if ProBIND or an alternative management system
> used SDB instead of their own schema, and I'm investigating bind-dlz and NetReg.
> Is there a preferred way to handle this?
> Thank you for your time,
Senior Software Engineer, I. T. Engineering and Operations
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