Re: REVERSE DNS Practices.

[Steven Champeon <schampeo () hesketh com>]

on Thu, Mar 26, 2009 at 10:26:59AM +1030, Tom Wright wrote:
> Don't be afraid to create zones for each
> location, DNS lends itself to this kind of
> hierarchy naturally.
>
> I find this is tidier than lengthy A records.
>
> I.e, hostname.location.domain

And yet makes it more difficult for anyone else to simply set
aside ALL of your dynamics as offlimits using simple substrings
(say, in sendmail's access.db or using postfix check_client_access).

Don't be that guy.

> W: http://www.internode.on.net

Oh, yeah. You already are (quick! guess which of these are actually
dynamic, and which static, who's residential, who's business, etc.):

adsl.internode.on.net 
gaw.internode.on.net  
padsl.internode.on.net  
adsl.adelaide.on.net    
link.internode.on.net   
as0.adl2.internode.on.net       
lns1.adl2.internode.on.net      
lns2.adl2.internode.on.net      
lns3.adl2.internode.on.net      
lns4.adl2.internode.on.net      
lns11.adl2.internode.on.net     
lns5.adl2.internode.on.net      
lns1.adl4.internode.on.net      
lns2.adl4.internode.on.net      
lns3.adl4.internode.on.net      
lns10.adl6.internode.on.net     
lns1.bne1.internode.on.net      
lns2.bne1.internode.on.net      
lns1.bne4.internode.on.net      
lns2.bne4.internode.on.net      
lns1.cbr1.internode.on.net      
lns2.cbr1.internode.on.net      
lns1.hba1.internode.on.net      
lns1.mel4.internode.on.net      
lns2.mel4.internode.on.net      
lns3.mel4.internode.on.net      
lns4.mel4.internode.on.net      
lns1.mel6.internode.on.net      
lns2.mel6.internode.on.net      
lns4.mel6.internode.on.net      
lns1.per1.internode.on.net      
lns1.syd2.internode.on.net      
lns1.syd6.internode.on.net      
lns2.syd6.internode.on.net      
lns4.syd6.internode.on.net      
lns1.syd7.internode.on.net      
lns2.syd7.internode.on.net      
lns3.syd7.internode.on.net      
cor2.adl2.internode.on.net
lns10.adl2.internode.on.net
lns10.mel4.internode.on.net
lns10.syd6.internode.on.net
lns10.syd7.internode.on.net
nsw.adsl.internode.on.net
qld.adsl.internode.on.net
qld.padsl.internode.on.net
sa.adsl.internode.on.net
tas.adsl.internode.on.net
vic.adsl.internode.on.net
wa.adsl.internode.on.net

Oh, there's also 'static.internode.on.net', so the safe bet is to
assume that ALL of the rest are dynamic. Correct bet? Who knows.

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