Help for delete more RRs

Kevin Darcy kcd at
Tue Jan 7 21:01:31 UTC 2003

maurywind at wrote:

> Dear all and happy new year...
> ... I should delete about 1000 RRs from same zone. I know 2 methods that are good for to add or delete of less RRs: 1) nsupdate utility 2) restart BIND after make the changes of forward and reverse tables. Do you know or do you can suggest me other (or best) solutions for to make those changes in little time and/or to have never service-impact in  my company ??
> Many thanks for your help.

Making the changes via Dynamic Update -- using nsupdate or some other mechanism -- is the least intrusive way, because it doesn't require the server to restart or reload at all. If for some reason you don't want to implement Dynamic Update, you could at least reduce the service impact by using the "reload <zone>" syntax of rndc, for the relevant zones, instead of
completely reloading or restarting the nameserver for each change or batch of changes. Note, however, that anything short of a complete restart could result in transient inconsistencies between your forward and reverse records, so if you have any application for which absolute forward/reverse consistency must be maintained at all times, your options are perforce

Another way of reducing the service impact is to have a separate server as the master server, which is not queried by clients (this is how I implement things around here). That way, you can restart/reload the master all you want and it doesn't directly affect clients.

                                                                                                                                    - Kevin

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