zonefile record question

[Barry Margolin]

In article <94nm5h$734 at pub3.rc.vix.com>,
Andrew Best  <andrew_best at pacific.net.au> wrote:
>
>Greetings all.
>
>The first line in a bunch of zonefiles we have is:
>
>$TTL 86400
>
>Ive looked through DNS & Bind and the Bind docs but cant find any
>in-depth info on what this does.
>
>Can some weild the clue bat on me please?

It sets the default TTL, which used to come from the last field in the SOA
record (that field is now the negative cache TTL).  It was added in BIND
8.2, the book documents 8.1.2.  This is explained in the documentation at
www.isc.org.

-- 
Barry Margolin, barmar at genuity.net
Genuity, Burlington, MA
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