automatic reverse and forwarding zones
Petr Špaček
pspacek at isc.org
Mon Nov 7 14:06:57 UTC 2022
On 28. 10. 22 9:29, Matus UHLAR - fantomas wrote:
> On 28.10.22 08:26, Ondřej Surý wrote:
>> BIND 9 have support for writing plugins, and we would accept a well
>> written
>> plugin that would allow generating the forward/reverse plugins on the fly.
>>
>> There’s already a feature request for it here:
>> https://gitlab.isc.org/isc-projects/bind9/-/issues/1586
>
> this request for ipv4 too.
>
> I really don't think making generic named for ipv6 addresses within
> range bigger then e.g. /112 (64Ki addresses) makes any sense.
>
> prehaps it may for small subsets of IP addresses
>
> /64 is 18446744073709551616 addresses, that can't be scanned in
> meaningful time and this number of DNS records would just mess up any
> DNS servers' memory.
>
> making BIND resilient against overflowing memory this way would make
> more sense than creating generic addresses.
Yes, that's exactly why plugin is needed. The plugin can generate
answers on the fly without having all of them in memory.
--
Petr Špaček
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