[rbldnsd] host name checking

[Amos Jeffries]

----- Original Message ----- 
From: <KarlKingston at ongov.net>
To: <rbldnsd at corpit.ru>
Sent: Friday, August 25, 2006 6:37 AM
Subject: [rbldnsd] host name checking


> I'm using rbldnsd to create my own private whitelist.    While this seems
> to work well using ip4set and IP addresses, I have a situation where I
> want to be able to whitelist an entire domain.
>
> let's take for example:   server mail.example.com.   Has an IP address of
> 1.2.3.4
>
> mydomain.com is running the whitelist.
>
> so if I have:
>
> *.example.com:127.0.0.3
>
> in my zone file.
>
> When my mailserver gets a connection from 1.2.3.4, it does a lookup of
> 4.3.2.1.mydomain.com
>
> How do I get rbldnsd to return 127.0.0.3 based on the zone file (assuming
> I don't have an IP entry anywhere)???
>
> Thanks
>

You cannot do both RHSBL and RBL without knowing both halves of the lookup.

Your zone contains "*.example.com:127.0.0.3" it can do RHSBL lookups 
"an.example.com.mydomain.invalid"

Your zone contains "1.2.3.4 : 127.0.0.3" it can do RBL lookups 
"4.3.2.1.mydomain.invalid"

You have two zones simultaneously listing BOTH, you can look up either.


You will need to configure:
EITHER
    the listing mechanism to lookup IPA and list "1.2.3.4 : 127.0.0.3: 
example.com Whitelisted"
OR
 configure the mailer to check domain name instead of IPA.

 Either may work, but without details of your mailer software more detailed 
help will be hard.

PS. I collect info on what RBL/RHSBL are available or in use. When this is 
going I would like to know what the actual name of "mydomain.com" you are 
using above is. And twhether or not it is strictly private or if its 
publicly available.

AYJ