IP Addresses With No PTR Record

I like to check up on the outgoing connections that iptables logs. While
'host' will return a FQ domain name (or 'dig -x' a PTR record) for most
dotted quad IP addresses, some are not resolved by 'host', and 'dig -x'
merely returns an SOA record. Yet 'whois' will return a legit owner for the
address.

Why do some IP addresses behave this way?

HaroldWho
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On 2006-06-23, HaroldWho <(E-Mail Removed)> wrote:
> Why do some IP addresses behave this way?

Because someone didn't felt like adding a ptr record for the IP.
Davide

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On Fri, 23 Jun 2006 20:52:01 +0200, Davide Bianchi wrote in
comp.os.linux.networking:
> On 2006-06-23, HaroldWho <(E-Mail Removed)> wrote:
>> Why do some IP addresses behave this way?
>
> Because someone didn't felt like adding a ptr record for the IP.
> Davide

As simple as that, eh? OK, I feel justified in looking further at those
addresses that just return an SOA record.

Thanks for your help

HW
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