Ruihai An wrote:
>
> This question is not related to Cisco, but I am sure some Cisco engineer
> know the anwer
Wow. Now here's a strict criteria for posting messages! Hey, I bet
someone here can fix cars too.
>
> How long does DNS server cache an entry it resoved earlier ?
The RFC for DNS, as well as any search engine (google too complex?)
would have explaind this much quicker than a post to a mailing list
dedicated to study for Cisco certifications...
Since I'm bothering to make this post, further wasting bandwith,
I might as well save you the search. Each DNS record has a TTL,
which is used to specify how long that entry may be cached. So,
long story short, its up to the owner of that domain as to how
long it can be saved.
Now back to cars...
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