Re: [gentoo-user] Re: Dynamic IP address services.

[Willie M <matthews.willie80@gmail.com>]

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On 11/08/2016 03:07 AM, J. Roeleveld wrote:
> On November 8, 2016 9:43:30 AM GMT+01:00, Willie M <matthews.willie80@gmail.com> wrote:
>> On 11/07/2016 06:31 PM, Harry Putnam wrote:
>>> Ian Zimmerman <itz@primate.net> writes:
>>>
>>>> On 2016-11-06 22:54, Willie M wrote:
>>>>
>>>>> http://freedns.afraid.org/
>>>>
>>>> ++ ++
>>>>
>>>> I had used both Dyn and NoIP before, but they both went all Web 2.0
>> on
>>>> me (and other well known ones probably did the same).
>>>>
>>>> FreeDNS is just perfect for me - a blast of fresh air from the past
>> :-)
>>>
>>> Just the tiniest bit thin on explaining what the heck you are
>> expected
>>> to do on the various pages that appear when setting up an account.
>>>
>>> I'd like to have a real ip for a change... been doing the fake home
>>> lan thing for years and always there are problems with sendmail or
>>> other mail apps.  Either masquerading or some other work around.
>>>
>>> Can anyone tell me if the freedns place will supply me with an ip
>> that
>>> will work for sendmail?  Will stand up across the internet when other
>>> internet hosts do reverse dns on my address for mail purposes.
>>>
>>> They advertise static addresses too, is there any draw back to that?
>>>
>>>
>>
>> Hey Harry,
>>
>> If I a not mistaken if you change your nameservers to FreeDNS you will
>> be able to have that dynamic IP Address that way. So your reverse
>> lookup
>> should work just fine.
>>
>> Only problem is that if your IP address changes, you would have a short
>> amount of time that your server would not respond (because of the IP
>> change). The default TTL on FreeDNS is 3600 seconds (1 hour).
>>
>> Reading on the front page it says that you can edit the TTL if you add
>> your own domain. I don't know for sure how it all works because I have
>> never added on. It doesn't hurt to try and it seems like it would be a
>> lot better than what you are using now.
>>
>> Hope this helps.
> 
> Willie,
> 
> This will not work.
> A reverse lookup (which FQDN for the IP) needs to work for all SMTP servers he is likely to send mail to. This would also include Google and Microsoft.
> 
> He needs to get his ISP to change the reverse DNS.
> 
> --
> Joost
> 

Hey Joost,

I think I understand what you mean.

-- 

Willie Matthews
matthews.willie80@gmail.com


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