Re: [exim-dev] [Bug 1461] New: dnssec use floods /var/log/me…

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Szerző: Viktor Dukhovni
Dátum:  
Címzett: exim-dev
Tárgy: Re: [exim-dev] [Bug 1461] New: dnssec use floods /var/log/messages
On Tue, Apr 08, 2014 at 09:28:22PM +0200, Heiko Schlittermann wrote:

> > Under the covers, if the address is on the public Internet, and
> > requires DNS lookups for resolution, if the local resolver is
> > configured to do DNSSEC, it will be validated. There is like at
> > this time no reason for Exim to explicitly distinguish DNSSEC
> > validated IP addresses from those that were obtained from unsigned
> > zones. Therefore, if the goal is to simply filter out forgeries, the
> > nameserver will already discard "bogus" results.
>
> But does the client application have a way to tell if the getnameinfo()
> result is validated? Or failed because of a failed validation?


My claim is that it does not matter. The IP->name mapping alone
is not terribly interesting from a security perspective.

-- 
    Viktor.