thor at anta.net
Fri Mar 24 08:37:39 UTC 2000
BIND Users Mailing List wrote:
> From: "Michael Vincent K. Pozon - CompE" <vince at trinity.cebu.pilnet.com>
> how do i insert the directive $TLL in a zone file ?
I assume you mean $TTL. Here's an example:
@ SOA ns hostmaster (
20000312401 8H 2H 7D 1D )
ns A 192.168.0.1
> by the way , what's the default TTL value ? minimum ?
--- the typical values --- vary widely.
Popular documentation like [RFC 1033] recommended a day for the
minimum TTL, which is now considered too low except for zones with
data that vary regularly. Once a DNS stabilizes, values on the order
of 3 or more days are recommended. It is also recommended that you
individually override the TTL on certain RRs which are often
referenced and don't often change to have very large values (1-2
weeks). Good examples of this are the MX, A, and PTR records of your
mail host(s), the NS records of your zone, and the A records of your
Unsecured email can be monitored, falsified, altered
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