On 01/05/2012 16:36, Chris Thompson wrote: > Our regular DNS changes (via [scripted] nsupdate) always add the SOA > explicitly (it's going to change anyway, after all), setting the serial > to the Unix time(2) value. BIND may have been incrementing the serial > itself as a result of re-signing activity, but we assume it hasn't > been doing so as often as once a second...
At our request, ISC added an option to BIND 9.9, which allows it to automatically set the serial number to unix time, so that we don't have to explicitly set the SOA record each time. If multiple updates arrive within the same second, then BIND just adds +1 to the existing serial number, so that for brief periods, the unix time will be in the "future". However, as time advances, the serial number will soon be in the past, allowing new updates to set the serial back to current unix time. Regards, Anand Buddhdev RIPE NCC _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users