Re: [Sqlgrey-users] nproxy.gmail.com

[Lionel B. <lio...@bo...>]

Klaus Alexander Seistrup wrote:

>Lionel Bouton wrote:
>
>  
>
>>>Perhaps Google's BOfHs has made a typo somewhere, because
>>>nproxy.gmail.com has the IP addresses 64.233.183.192-207, perhaps not.
>>>      
>>>
>>They probably made a typo.
>>    
>>
>
>I hope so.
>
>  
>
>>64.233.183 in clients_ip_whitelist.local (google registered 64.233.160.0/19
>>anyway)
>>    
>>
>
>Rather 64.233.182.  64.233.183 is covered by the
>/^[mnrwz]proxy\.gmail\com$/ regexp, at least as of now, but I get your
>point.
>  
>

Unless the DNS is answering differently to me (could be),
nproxy.gmail.com does only cover 64.233.182.x addresses.

The fqdn Postfix hands to SQLgrey is the result of a double query: first
a PTR query to get the fqdn (both 62.233.182.... and 64.233.183....
points to nproxy.gmail.com) then it queries the fqdn to check that the
fqdn covers the original IP to be sure that it isn't a simple trick :
this is were 64.233.183 isn't found and Postfix considers the address
unknown.

So /^[mnrwz]proxy\.gmail\com$/ can only match the systems on 62.233.182.x

Am I mistaken?

Lionel