nanog mailing list archives

Re: Multiple DNS implementations vulnerable to cache poisoning


From: "Christopher Morrow" <morrowc.lists () gmail com>
Date: Thu, 10 Jul 2008 11:08:49 -0400

On Thu, Jul 10, 2008 at 10:22 AM, Wes Hardaker <wjhns61 () hardakers net> wrote:
On Wed, 9 Jul 2008 22:55:05 -0400, "Christopher Morrow" <morrowc.lists () gmail com> said:

aside from just getting some cctlds signed, i will be interested in the
tools, usability, work flow, ...  i.e. what is it like for a poor
innocent cctld which wants to sign their zone?

If there is sufficient interest, we could do a bar bof to describe some of
the tools IANA has...


CM> I think Sandy Murphy or other Sparta folks have presented some of the
CM> work they've done on this... Perhaps finding one/some of them and
CM> having a more operations focused presentation in LAX or ... is a good
CM> idea as well?

The tools that Sparta developed (and made freely available via an open
source packaged that is BSD licensed) can be found at
http://www.dnssec-tools.org/ .  In particular, signing a zone is

yup, and that's helpful stuff.

intended to be easy using "zonesigner" (requires bind tools):

 zonesigner -genkeys db.example.com


great... what about a zone that's getting slaved off of a silent
master at the customer site? how does that get integrated? (customer
does the dns-sec magic, my server validates the updates... config
examples help here)

Then next time, just leave off the -genkeys argument.

(there is also a daemon called "rollerd" that can auto-sign on a regular
basis and help automate key-rollever timing)


nice, extra load induced on server? impact on the number of zones I
can serve? tinydns compatible? db-backended NS daemon support?

The full list of tools and tutorials sectioned into different needs can
be found here:

 http://www.dnssec-tools.org/wiki/index.php/Tutorials


great :)


All for free.  Don't you hate those ??biased??, freely-available,
source-code-supplied-so-you-can-change-it, BSD-licensed open source
packages?
--

I like free... as long as it's the hammer I need for the nails I have.

-Chris


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