[Twisted-Python] Handeling unresolved DNS queries?

Jesper Taxbøl jesper at taxboel.dk
Thu Oct 22 15:00:35 EDT 2009

Hi Jean-Paul,

I guess my focus is right when it comes to redirecting clients.

Im hooking into

DNSDatagramProtocol.writeMessage(self, message, address):

And I guess thats OK?

But when it comes to bogus domains, I guess i could use:

DNSServerFactory.gotResolverError(self, failure, protocol, message,

My problem is now how I construct a redirect package and channel it back to
the client.

Do you think that is a sensible approach? -and do you hava a pointer on how
to find the associated client.

kind regards


2009/10/22 <exarkun at twistedmatrix.com>

> On 02:46 pm, jesper at taxboel.dk wrote:
> >Hi Jean-Paul,
> >
> >Thanx for your nice reply. My problem seems to be that I dont get any
> >calls
> >to writemessage when the domain is a bogus one?
> It's not immediately obvious why this would be.  writeMessage is called
> to write responses back to your clients.  If the requests your server
> issues get answers, then writeMessage will be called with those answers.
> If it's not being called, perhaps the problem is that your server's
> requests are being answered by the servers it is asking.
> Jean-Paul
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> Twisted-Python at twistedmatrix.com
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