Home Office PHP Web Server : Reverse Lookup

[Amit Nepal]

Reverse lookup is always configured on the ISP or whoever owns the IP 
end.  You can register your forward DNS information with any registrar, 
but reverse lookup has to be handled by the network provider. Cox 
probably has a default reverse lookup on each of their IP which is why 
there may not be a custom one tied to your IP but still provides a 
reverse name.


On 5/26/2021 7:22 AM, Keith Smith via PLUG-discuss wrote:
> Thank you for your reply Stephen!!
>
> Is there any way to determine where this record is served from?
>
> - - -
>
> On 2021-05-26 07:11, Stephen Partington via PLUG-discuss wrote:
>> So, part of this will be because you are connected by cox.  its not
>> that you have a specific server but that you are using their DNS for
>> now. as you register your DNS info you have an identity on cox's
>> network. I think this will change once you have a proper DNS
>> responding. I may be wrong on this.
>>
>> On Wed, May 26, 2021 at 6:22 AM Keith Smith via PLUG-discuss
>> <plug-discuss at lists.phxlinux.org> wrote:
>>
>>> PLUG-discuss at lists.phxlinux.org
>>>
>>> Hi,
>>>
>>> I'm running Cox business.  They allow me to run servers and do not
>>> block
>>> ports.  They configured a reverse lookup years ago.  Since I will be
>>>
>>> running my own DNS, I asked them to remove the reverse lookup.  Cox
>>> says
>>> they do not have a reverse look up on my account.
>>>
>>> I then ran dig -x {my-Cox-IP}
>>>
>>> and it returned that there was a reverse look up on port 53, which I
>>>
>>> have closed on my router and gives a private/non-routable IP of
>>> 192.168.1.1.  My understanding is that is the gateway address.
>>>
>>> Any thoughts on how to resolve this is much appreciated.
>>>
>>> Keith
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>>
>> -- 
>> A mouse trap, placed on top of your alarm clock, will prevent you from
>> rolling over and going back to sleep after you hit the snooze button.
>>
>> Stephen
>> ---------------------------------------------------
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