On 7 Jan 2011, at 09:10, p...@mail.nsbeta.info wrote:
> I just want to write a script for checking master and slave to make sure they
> have been always syncing the data correctly. What's the idea for doing it?
Initial condition:
dig @master zone SOA
dig @slave zone SOA
check that serials match
if not, work out why and fix
Check whether slave is tracking master:
update zone on master
dig/dig/check once more
if not matched, as before
Afterwards:
dig/dig/check as often as is reasonable
treat a mismatch as a problem
No doubt many people have written scripts to do this. Even if
you end up preferring someone else's, writing your own once is
a good way to learn what's involved.
I'm not familiar with any except my own. These 'work for me',
but aren't packaged attractively enough for me to inflict them
on others. 8-)
If your zones are properly delegated, and your servers accessible
from the public Internet, then the web-based remote-checking tools
available at www.zonecheck.fr or dnscheck.iis.se are excellent.
Either of these will give you some ideas about what to include in
the script you want to write.
Have fun!
Niall O'Reilly
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