Author: David Woodhouse Date: To: Derrick 'dman' Hudson CC: exim-users Subject: Re: [Exim] Re: Debian, Exim and HELO.
dsh8290@??? said: > Suppose I am using 0 (ok, I am, I should change it sometime after I
> move back home). Suppose also that I put the wrong interface in my
> DDTS config (I did that too, oops). Now when you do a DNS query for
> 'dman2.ddts.net' you end up getting back 192.168.0.1. Your machine
> sees that, it's a valid address, and points to some.host on your lan.
> That isn't a good thing.
That was _already_ 'not a good thing' by the time you let your schizodns
leak through the wrong interface.
Surely, therefore, it's an argument for using sane, unambiguous domain names
for private DNS instead of doing schizodns, rather than an argument for not
using RFC1918 addresses that others are likely to be using?
I use 192.168.0.x for my internal network too -- but the chances of me
misconfiguring my setup to the extent that you get the record for
'mail.baythorne.internal' when you look up 'mail.infradead.org' are fairly
slim -- because I don't violate the KISS principle by having a schizophrenic
DNS setup and all the strangeness that goes with it.
