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Re: [spf-discuss] Re: SPF adoption statistics

2005-11-22 10:02:29
On Tue, 22 Nov 2005, Alex van den Bogaerdt wrote:

Host:
        somehost.example.org  address 10.1.2.3
Interfaces:
        somehost.example.org  address 10.1.2.3
        interface.example.org address 10.2.3.4

This host is incorrectly configured.  Since it has two interfaces,
DNS should have something like:

 Host:
         somehost.example.org  IN A 10.1.2.3
         somehost.example.org  IN A 10.2.3.4
         interface.example.org IN A 10.2.3.4
 Interfaces:
         somehost.example.org  address 10.1.2.3
         interface.example.org address 10.2.3.4

You get a connection from 10.2.3.4, HELO somehost.example.org

You ask PTR(10.2.3.4) and get interface.example.org

You do *not* ask for PTR.  You ask for A(somehost.example.org).

Or you ask A(somehost.example.org) and get 10.1.2.3

*and* 10.2.3.4.

Instead of multiple IPs for the HELO name, if said host wants to use a
different name for the second interface, it should use that name when
connecting with it!

-- 
              Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
    Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flamis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.


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