Hello Brielle, The issue has been resolved, I confirmed the Qwest/CenturyLink resolver you mentioned is being properly routed. -- ♜ Dan States - Yahoo DNS Operations
On Monday, January 30, 2017, 7:04:40 PM PST, Dan States <dsta...@yahoo-inc.com> wrote:Looks like this may be a peering issue, we're investigating. Regards -- ♜ Dan States - Yahoo DNS Operations On Saturday, January 28, 2017, 4:29:12 AM PST, Stephen Strowes <stephe...@gmail.com> wrote:I assume somebody knows about this thread :-) S. ---------- Forwarded message ---------- > On Jan 27, 2017, at 6:30 PM, Brielle Bruns <br...@2mbit.com> wrote: > > Hello! > > Don't suppose there's a Yahoo admin in the DNS department that can > investigate/debug a Geolocation issue? > > It appears that Yahoo's Geolocation is putting CenturyLink's IPv6 addresses > as being in .BR, causing not only the two CL/Qwest recursive servers > (205.171.2.65/205.171.3.65/ 2001:428::1/2001:428::2), but recusive servers > hosted on biz customer IPv6 6RD ranges to return non-US Yahoo servers (and be > agonizingly slow). > > ===== > View from local powerdns recursor, dual stacked, but preferring ipv6 for > resolving: > > root@noc:~# dig mg.mail.yahoo.com @127.0.0.2 > > ; <<>> DiG 9.9.5-9+deb8u9-Debian <<>> mg.mail.yahoo.com @127.0.0.2 > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 50638 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;mg.mail.yahoo.com. IN A > > ;; ANSWER SECTION: > mg.mail.yahoo.com. 1349 IN CNAME fd-geoycpi-uno.gycpi.b. > yahoodns.net. > fd-geoycpi-uno.gycpi.b. yahoodns.net. 300 IN A 200.152.162.161 > fd-geoycpi-uno.gycpi.b. yahoodns.net. 300 IN A 200.152.162.135 > > ;; Query time: 240 msec > ;; SERVER: 127.0.0.2#53(127.0.0.2) > ;; WHEN: Fri Jan 27 17:20:52 MST 2017 > ;; MSG SIZE rcvd: 116 > > ===== > View from CL/Qwest IPv4 (likely dual stacked) and IPv6 recursors: > > root@noc:~# dig mg.mail.yahoo.com @205.171.2.65 > > ; <<>> DiG 9.9.5-9+deb8u9-Debian <<>> mg.mail.yahoo.com @205.171.2.65 > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8308 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1 > > ;; OPT PSEUDOSECTION: > ; EDNS: version: 0, flags:; udp: 4096 > ;; QUESTION SECTION: > ;mg.mail.yahoo.com. IN A > > ;; ANSWER SECTION: > mg.mail.yahoo.com. 758 IN CNAME fd-geoycpi-uno.gycpi.b. > yahoodns.net. > fd-geoycpi-uno.gycpi.b. yahoodns.net. 138 IN A 200.152.162.161 > fd-geoycpi-uno.gycpi.b. yahoodns.net. 138 IN A 200.152.162.135 > > ;; Query time: 17 msec > ;; SERVER: 205.171.2.65#53(205.171.2.65) > ;; WHEN: Fri Jan 27 17:21:35 MST 2017 > ;; MSG SIZE rcvd: 127 > > > root@noc:~# dig mg.mail.yahoo.com @2001:428::1 > > ; <<>> DiG 9.9.5-9+deb8u9-Debian <<>> mg.mail.yahoo.com @2001:428::1 > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24138 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1 > > ;; OPT PSEUDOSECTION: > ; EDNS: version: 0, flags:; udp: 4096 > ;; QUESTION SECTION: > ;mg.mail.yahoo.com. IN A > > ;; ANSWER SECTION: > mg.mail.yahoo.com. 464 IN CNAME fd-geoycpi-uno.gycpi.b. > yahoodns.net. > fd-geoycpi-uno.gycpi.b. yahoodns.net. 214 IN A 200.152.162.161 > fd-geoycpi-uno.gycpi.b. yahoodns.net. 214 IN A 200.152.162.135 > > ;; Query time: 46 msec > ;; SERVER: 2001:428::1#53(2001:428::1) > ;; WHEN: Fri Jan 27 17:23:38 MST 2017 > ;; MSG SIZE rcvd: 127 > > ===== > Google recursor for reference: > > root@noc:~# dig mg.mail.yahoo.com @8.8.8.8 > > ; <<>> DiG 9.9.5-9+deb8u9-Debian <<>> mg.mail.yahoo.com @8.8.8.8 > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13327 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 1 > > ;; OPT PSEUDOSECTION: > ; EDNS: version: 0, flags:; udp: 512 > ;; QUESTION SECTION: > ;mg.mail.yahoo.com. IN A > > ;; ANSWER SECTION: > mg.mail.yahoo.com. 1459 IN CNAME fd-geoycpi-uno.gycpi.b. > yahoodns.net. > fd-geoycpi-uno.gycpi.b. yahoodns.net. 184 IN A 216.115.100.124 > fd-geoycpi-uno.gycpi.b. yahoodns.net. 184 IN A 208.71.44.31 > fd-geoycpi-uno.gycpi.b. yahoodns.net. 184 IN A 216.115.100.123 > fd-geoycpi-uno.gycpi.b. yahoodns.net. 184 IN A 208.71.44.30 > > ;; Query time: 27 msec > ;; SERVER: 8.8.8.8#53(8.8.8.8) > ;; WHEN: Fri Jan 27 17:21:59 MST 2017 > ;; MSG SIZE rcvd: 159 > > > > For reference, CL/Qwest's IPv6 range for 6RD is 2602::/24. > > This appears to be impacting Yahoo, Yahoo Mail, Flickr, etc (aka Yahoo owned > properties). > > > Thanks! > > -- > Brielle Bruns > The Summit Open Source Development Group > http://www.sosdg.org / http://www.ahbl.org