On Wed, 2012-09-12 at 16:03 -0500, Chris Boyd wrote: > Anyone else seeing this? Or is it common knowledge I just tripped over? > > Was just looking into a DNS issue for a customer and noticed Google's DNS was > reporting cache times of 9700+ seconds, despite the zone TTL being 3600 > seconds. > > First, an authoritative server, then Google's answers. Yes, I know Google's > answer is different from mine, thus the discovery of the different cache time. > > --Chris
The only way I see them overriding TTL, is using a maximum of 12 hours, and not what the zone specifies, ie, 24 hours. Checked a hostname for an IRC server with a TTL of 900 seconds, they honour that. -tested on unique hostnames no way in hell google would even know about they return xxxxxx 43200 IN A xxxxxxx whereas others xxxxx 86400 IN A xxxxxxx <-- the correct one. so, no big deal really.
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