reverse lookup zone different from /24

[fddi]

thank you to all for the explanatinos, I'll create all my /24 reverse 
with a python script :)


Matus UHLAR - fantomas wrote:
>>> I have many IP sunets which are /22 or /21 and it is really annoying to
>>> write 8 reverse subnets
>>>       
> [...]
>   
>>> is there a way to write only one reverse zone for /22 or /21 or
>>> /seominthg-different-form  /24 ?
>>>       
>
> well, someone must create them, because that's how DNS works. you can of
> course redirect them to one zone but that may cause useless troubles
> - if you made error in _any_ of two zones through lookups will go, the
> lookups may fail.
>
> Therefore it's better to create separate zones for /24, unless you have /16
> (or /8) and want to put all into one file (well, one mistake can make whole
> file and all records unreachable).
>
>
> On 05.03.10 17:02, balkrishna at subisu.net.np wrote:
>   
>> Please try the link http://www.indelible.org/ink/classless/
>>     
>
> This descries classless DNS for subnets smaller than /24.
> For wider than /24 it's mostly useless.
>
>