About.com/NYTimes admins about?
cleary at nytimes.com
Tue Sep 30 16:04:48 CDT 2008
I worked with Chris on this outside of the list. Replying here just to
close the loop in case anyone else was interested.
This situation is explained in this Case Study:
The key sentence being:
"In NetScaler software release 7.0, when the DNS server looks up AAAA
records, the response was “0” and errors “0”. However, in NetScaler
software release 8.0, with standard response “0”, the NetScaler
appliance sends the delegation records to root. "
To summarize, if you don't have your NS records in place on the
Netscalers, you will see a loop for AAAA queries
(root>auth>netscaler>root....), eventually resulting in a SERVFAIL.
Christopher Morrow wrote:
> On Sat, Sep 27, 2008 at 3:12 AM, Robert Manning <riches at about.com> wrote:
>> Hey Chris, I'll reply to you off list.
> awesome, thanks!
>> Thanks for the heads up.
>> On 9/26/08 10:13 PM, "Christopher Morrow" <morrowc.lists at gmail.com> wrote:
>>> Is there perhaps an about.com/nytimes.com admin around? I was
>>> wondering if they perhaps knew that their loadbalancer for
>>> www.nytimes.com is fairly broken wrt answering AAAA queries:
>>> (who's NS for nytimes.com)
>>> dig NS nytimes.com +short
>>> (who do they think is the NS for www.nytimes.com)
>>> dig www.nytimes.com @ns1t.nytimes.com. NS
>>> ;; QUESTION SECTION:
>>> ;www.nytimes.com. IN NS
>>> ;; AUTHORITY SECTION:
>>> www.nytimes.com. 60 IN NS nss1.sea1.nytimes.com.
>>> www.nytimes.com. 60 IN NS nss1.lga2.nytimes.com.
>>> (what is the AAAA for www.nytimes.com ?? )
>>> dig www.nytimes.com @nss1.sea1.nytimes.com. AAAA
>>> ;www.nytimes.com. IN AAAA
>>> ;; AUTHORITY SECTION:
>>> . 3600000 IN NS k.root-servers.net.
>>> . 3600000 IN NS l.root-servers.net.
>>> . 3600000 IN NS m.root-servers.net.
>>> . 3600000 IN NS a.root-servers.net.
>>> . 3600000 IN NS b.root-servers.net.
>>> . 3600000 IN NS c.root-servers.net.
>>> . 3600000 IN NS d.root-servers.net.
>>> . 3600000 IN NS e.root-servers.net.
>>> . 3600000 IN NS f.root-servers.net.
>>> . 3600000 IN NS g.root-servers.net.
>>> . 3600000 IN NS h.root-servers.net.
>>> . 3600000 IN NS i.root-servers.net.
>>> . 3600000 IN NS j.root-servers.net.
>>> ;; ADDITIONAL SECTION:
>>> k.root-servers.net. 3600000 IN A 184.108.40.206
>>> l.root-servers.net. 3600000 IN A 220.127.116.11
>>> m.root-servers.net. 3600000 IN A 18.104.22.168
>>> ;; Query time: 89 msec
>>> ;; SERVER: 22.214.171.124#53(126.96.36.199)
>>> wha??? <ricky voice>Lucy, your loadbalancer is foobar'd</ricky voice>
>>> In an effort to make v6 things work a tad better in this hostile
>>> world, could the NYTimes folks let us know what sort of LB that is?
>>> and why it wants to not be a good Intenet Citizen??
Senior Network Engineer
More information about the NANOG