Why is $TTL required for the root hints?

[Michael Kjorling]

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How long they should be cached when provided to other clients,
perhaps? I am not positive, though - I bet someone else can shed some
light on this. As for BIND 9, it requires all RRs to have a TTL
specified, whether explicitly or via a $TTL directive.

But I belive that whatever way you get the root hints file, it has the
TTLs specified explicitly on all resource records? Perhaps you are
running an internal root? Then you do not need and in fact should not
have any root hints file; you should have a master zone "." which is
your DNS root.


Michael Kjörling


On Sep 23 2001 12:50 +0200, Jesper Dybdal wrote:

> I have just upgraded from BIND 8.2.3 to 9.2.0rc3.
>
> I was surprised to see that BIND 9 insists on my having a $TTL in the
root
> hints file.
>
> What is the meaning - if any - of the TTL value for the root hints?

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