On May 24, 2011, at 2:28 PM, Lightner, Jeff wrote: > Is anyone else seeing odd results with news.google.com? My BIND 9 master > and slave are getting different results.
Presumably your slave and master are in different subnets? Google (and many other large networks) perform geolocation and hand out A records that a "close" to your resolver. Presumably we believe that 72.14.209.99 is (network wise) close to your master and 74.125.65.99 is close to your slave. If you provide IPs and actual locations for your slaves and master I can check.... W > If I go out to other sites such as Kloth.net or iptools.com they also get > different results from each other and different from what my master and slave > are reporting. > > I’m running BIND 9.3 (The RedHat version that has backported patches and > enhancements from later BIND versions in it so please don’t tell me to use a > newer version.) > > On doing some research I found that Google has made a couple of changes in > the past week or so affecting their news stuff. The one that seems like it > might explain why Kloth.net, iptools.com and my server get different answers > is the May 13th introduction of “news near you” discussed in this article: > http://www.pcmag.com/article2/0,2817,2385369,00.asp > > That is aimed at mobile devices but I could see how they might also try to > make it work with static sites. However it wouldn’t explain why both my > servers coming from the same location would get different results. I’m > thinking maybe there is something else obvious I’m missing. > > I am not caching on these servers and have bounced named on both but it > didn’t help. > > Does anyone have any ideas? Other than the fact that they’re master and > slave with different IPs and setup to talk to each other the named.conf on > both hosts is the same. They both have the same OS and same hardware. > Also we have some Windows DNS servers in house and they seem to be giving the > same results as my slave so the master appears to be the odd man out. > > When I run “dig news.google.com” from my BIND 9 master I’m getting: > ; <<>> DiG 9.3.4-P1 <<>> news.google.com > ;; global options: printcmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46508 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 4, ADDITIONAL: 2 > > ;; QUESTION SECTION: > ;news.google.com. IN A > > ;; ANSWER SECTION: > news.google.com. 603615 IN CNAME news.l.google.com. > news.l.google.com. 300 IN A 72.14.209.99 > news.l.google.com. 300 IN A 72.14.209.104 > > ;; AUTHORITY SECTION: > google.com. 170523 IN NS ns1.google.com. > google.com. 170523 IN NS ns2.google.com. > google.com. 170523 IN NS ns3.google.com. > google.com. 170523 IN NS ns4.google.com. > > ;; ADDITIONAL SECTION: > ns3.google.com. 344424 IN A 216.239.36.10 > ns4.google.com. 343339 IN A 216.239.38.10 > > ;; Query time: 6 msec > ;; SERVER: 127.0.0.1#53(127.0.0.1) > ;; WHEN: Tue May 24 14:17:14 2011 > ;; MSG SIZE rcvd: 190 > > Yet on my slave I get: > ; <<>> DiG 9.3.4-P1 <<>> news.google.com > ;; global options: printcmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 30872 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 7, AUTHORITY: 4, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;news.google.com. IN A > > ;; ANSWER SECTION: > news.google.com. 603986 IN CNAME news.l.google.com. > news.l.google.com. 300 IN A 74.125.65.99 > news.l.google.com. 300 IN A 74.125.65.103 > news.l.google.com. 300 IN A 74.125.65.104 > news.l.google.com. 300 IN A 74.125.65.105 > news.l.google.com. 300 IN A 74.125.65.106 > news.l.google.com. 300 IN A 74.125.65.147 > > ;; AUTHORITY SECTION: > google.com. 171986 IN NS ns4.google.com. > google.com. 171986 IN NS ns1.google.com. > google.com. 171986 IN NS ns2.google.com. > google.com. 171986 IN NS ns3.google.com. > > ;; Query time: 5 msec > ;; SERVER: 127.0.0.1#53(127.0.0.1) > ;; WHEN: Tue May 24 14:18:03 2011 > ;; MSG SIZE rcvd: 222 > > > Proud partner. Susan G. Komen for the Cure. > > Please consider our environment before printing this e-mail or attachments. > ---------------------------------- > CONFIDENTIALITY NOTICE: This e-mail may contain privileged or confidential > information and is for the sole use of the intended recipient(s). If you are > not the intended recipient, any disclosure, copying, distribution, or use of > the contents of this information is prohibited and may be unlawful. If you > have received this electronic transmission in error, please reply immediately > to the sender that you have received the message in error, and delete it. > Thank you. > ---------------------------------- > _______________________________________________ > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
