localhost zone

[Clenna Lumina]

Clenna Lumina wrote:
> Mark Watts wrote:
>>> Hello to all ,
>>>
>>> I have that some dns servers had, in addition to the
>>> "0.0.127.in-addr.arpa" zone, a zone "localhost" in their
>>> configuration.
>>>
>>> Is there an interest to have this zone configured ?
>>>
>>> I am asking you this, because i've seen some of my mail servers
>>> asking for "localhost/MX/IN", and i was surprised by such request.
>>>
>>> Thanks in advance.
>>
>> Mis-configured clients can often be seen trying to resolve
>> "localhost" from the DNS server they are configured to use.
>
> I thought it was common to have "0.0.127.in-addr.arpa" or
> "127.in-addr.arpa" and sometimes "localhost" on the dns server, as
> long as each host as "localhost 127.0.0.1" in their host (ie
> /etc/host) files?

I mean I thought it was common to have that setup on DNS as well as in 
the host file, so anything that tries to resolve either 127.0.0.1 or 
localhost directly from the name server instead of using the default 
resolver will still get an answer?

I know 127.8 is a local resource, but is there a real reason why one 
shouldn't have it in DNS?

-- 
CL