[FX.php List] [OFF] Question about DNS TTL (time-to-live)
bob at patin.com
Sun Oct 9 16:31:44 MDT 2011
My understanding is that time-to-live in DNS settings determines how long DNS servers will cache a domain name's record before going back to the name servers to check the IP address.
I set a DNS TTL to 300 seconds for a domain name, but it didn't update worldwide in 5 minutes. In fact, it's been 6 hours and I'm still waiting.
From what I've read, it was my understanding that the TTL setting tells all the upstream DNS servers how long to cache the domain info; am I missing something?
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