host your subdomain on your own ?

Reindl Harald h.reindl at
Sat Nov 13 16:07:51 UTC 2021

Am 13.11.21 um 17:00 schrieb Grant Taylor via bind-users:
> On 11/13/21 12:59 AM, Reindl Harald wrote:
>> i doubt that any ISP out there would delegate to a private address and 
>> when your bind is asked over it's public IP a view won't work
> ISP's willingness to do something is a policy decision and that's 
> completely different than their capability to do something which is a 
> technology decision.

but you have to deal with it

> I see zero reason that a parent zone operator can't delegate something 
> to a private / non-globally-routed IP.
>> chicken / egg
> Not necessarily.  Just because the Internet at large can't access the IP 
> that the child zone is delegated to doesn't mean that business partner's 
> can't access it.  --  I believe that I saw in one of the messages that 
> there was a VPN between the sites / business partners which did support 
> / provide routing to the private IP.
> In some ways, this is similar to making something resolve to 
> and / or ::1.  That information can be published in globally accessible 
> DNS, but it will likely be of very limited value.

you missed my second post!

* he needs the delegation because lack of control
* when the clients network is using a public
   forwarder the delegation simply can't work
* so the problem is lack of control and can't be solved

personally i would simply add additional names point to the LAN 
addresses in my normal public zone, you don't even need a full subdomain 
zone for add "" poining to


and not to forget: most networks are forwarding to some public 
nameserver which can't reach your private named at all (google) can't hit your internal view

when you can't control something it's exactly that

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