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DNS: Re: DNS updates (zone reload frequency)

In topic: DNS updates (zone reload frequency)

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On Mar, 30 2008 20:35 CEST, Mi wrote:
I changed my zone file, and now wonder when the zone files get
reloaded.

How long do I have to wait for my new zone info in your DNS to be
updated?

Tanks,

Mi
Hi Mi,

Every DNS setting as a TTL (time to live) setting on it, which is the
amount of time the record states that it will valid for before it should
be checked again. So when you make a change to your zone file, it means
that servers referencing your record will generally wait 3 hours before
updating themselves with the latest info. So after 3 hours servers start
to update, but the new record will then cacade across the web as servers
update themselves and each other. Generally DNS changes can take up to
72 hours, but are usually much quicker than this.

I hope that helps, Joe