MX for mailhub and reverse pointer file

[Kevin Darcy]

Harry Putnam wrote:

>Kevin Darcy <kcd at daimlerchrysler.com> writes:
>
>  
>
>>>;;;Do I need something here like:
>>>;;;                     IN      MX      reader.local.net0
>>>
>>>      
>>>
>>Do you expect folks to be sending mail to user at 0.168.192.in-addr.arpa?
>>    
>>
>
>Harry wrote:
>  
>
>>;;;Do I need something here like:
>>;;;                     IN      MX      reader.local.net0
>>    
>>
>
>Sorry, I'm too dense to get the cryptic answer... does it mean no,
>nothing goes in there or does it mean something goes in there but not
>in that format?
>
Nothing goes in there, presumably. You only need MXes for the domain 
names to be actually used as mail destinations. This zone is in the 
in-addr.arpa tree. Although possible, it seems unlikely that anyone 
would want a mail destination in that part of the namespace.

Add to that the fact that 192.168/16 is a *non-unique*, private address 
space, so no-one outside of your organization should even been seeing 
your version of it, it seems doubly unlikely that you'd want a mail 
destination of @0.168.192.in-addr.arpa. Although I suppose anything is 
possible with an internal-only root-zone and mail setup...

>And the log ...
>
> Feb 9 19:27:53 reader kernel: process `named' is using obsolete
>  setsockopt SO_BSDCOMPAT
>
>Do I need to worry about that?
>
I skipped over that part because I've never gotten that error on any of 
my systems. I think it's just informational.

- Kevin