DNSSEC in China

Joel jaeggli joelja at bogus.com
Wed Oct 5 12:12:44 CDT 2011


On 10/5/11 10:05 , Michael Sinatra wrote:
> The thread on f-root reminded my of an anecdotal datum regarding DNSSEC
> in China.  I was in China back in August, staying at the Green Lake
> Hotel in Kunming, Yunnan Provence.  When connecting to the hotel in-room
> network (there was no wireless but a wired connection), I was able to
> properly validate DNSSEC for names like www.es.net and berkeley.edu,
> both of which are part of signed zones with a chain of trust from the
> root.  I was able to do the validation on my caching resolver (BIND
> 9.8.x) running on my laptop.
> 
> If a site was blocked by authorities, I couldn't resolve it at all, but
> that was also the case even if I wasn't doing validation on my laptop
> resolver, but instead using the resolver provided by DHCP.  (FYI, I
> "stumbled" upon an expat bar later in my trip near Yunnan Provincial
> University and the folks there--Europeans and Americans--all said that
> the number of sites they can get to has expanded in recent months.  One
> Finn was accessing the Guardian to get the latest on the London riots.)
> 
> Another anecdote from NANOG 52: At the Denver Sheraton, I was unable to
> validate or resolve any name using my local laptop resolver.  I couldn't
> even validate TLDs or dlv.isc.org, so *all* of my name resolution broke.
>  In the end, I had to disable my local resolver entirely and use those
> provided by DHCP.
> 
> I have nothing to say about hypocrisy or the relative level of
> oppression between the Chinese government versus the Starwood Group
> (although it's humorous to think about).  What I will say is that DNSSEC
> made it very clear in the case of the Sheraton that they were messing
> with DNS because DNSSEC made the handcuffs so obviously tight.

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> michael
> 




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