On 12/3/08, Paul Stewart <pstewart@nexicomgroup.net> wrote:
I talked to Yahoo! NOC a little while ago and they are working on the issue - definitely DNS related and appears to possibly be east coast only.... details are vague but they are aware of it and no ETA yet...
Paul
Yes; actively being worked on; Juniper T1600 went kablooie, and when it went away, anycasted DNS went haywire as well; still digging into it more; yes, this is primarily affecting traffic coming through Ashburn, VA. No, I don't have an answer on specifically what happened; yes, we're aware of the issue and have put workarounds in place; you should be back up and functional for the moment, though not in an optimal state. Matt And no, I'm not speaking authoritatively for anything or anyone at the moment, so treat this with a few grains of salt.
-----Original Message----- From: Nathan Ward [mailto:nanog@daork.net] Sent: Wednesday, December 03, 2008 3:41 PM To: nanog list Subject: Re: Yahoo DNS broken?
There is no A records, correct. There is a CNAME though: www.wa1.b.yahoo.com. 45 IN CNAME www- real.wa1.b.yahoo.com. www-real.wa1.b.yahoo.com. 45 IN A 209.131.36.158
On 4/12/2008, at 9:36 AM, Larry Daberko wrote:
I am unable to resolve www.yahoo.com. Tracing DNS back from the root servers shows that www.yahoo.com is a CNAME to www.wa1.b.yahoo.com and there are no A records for that hostname.
Anyone have more details or a Yahoo contact? I'm unable to get to their webpage as it is :-)
-Larry Daberko iServe Technologies
$ dig @ns1.yahoo.com www.yahoo.com
; <<>> DiG 9.4.2 <<>> @ns1.yahoo.com www.yahoo.com ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 56431 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2 ;; WARNING: recursion requested but not available
;; QUESTION SECTION: ;www.yahoo.com. IN A
;; ANSWER SECTION: www.yahoo.com. 300 IN CNAME www.wa1.b.yahoo.com.
;; AUTHORITY SECTION: wa1.b.yahoo.com. 300 IN NS yf1.yahoo.com. wa1.b.yahoo.com. 300 IN NS yf2.yahoo.com.
;; ADDITIONAL SECTION: yf1.yahoo.com. 1800 IN A 68.142.254.15 yf2.yahoo.com. 1800 IN A 68.180.130.15
;; Query time: 15 msec ;; SERVER: 68.180.131.16#53(68.180.131.16) ;; WHEN: Wed Dec 3 15:34:09 2008 ;; MSG SIZE rcvd: 123
but looking up the host itself gives no answer
$ dig @ns1.yahoo.com www.wa1.b.yahoo.com
; <<>> DiG 9.4.2 <<>> @ns1.yahoo.com www.wa1.b.yahoo.com ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34875 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2 ;; WARNING: recursion requested but not available
;; QUESTION SECTION: ;www.wa1.b.yahoo.com. IN A
;; AUTHORITY SECTION: wa1.b.yahoo.com. 300 IN NS yf1.yahoo.com. wa1.b.yahoo.com. 300 IN NS yf2.yahoo.com.
;; ADDITIONAL SECTION: yf1.yahoo.com. 1800 IN A 68.142.254.15 yf2.yahoo.com. 1800 IN A 68.180.130.15
;; Query time: 15 msec ;; SERVER: 68.180.131.16#53(68.180.131.16) ;; WHEN: Wed Dec 3 15:35:07 2008 ;; MSG SIZE rcvd: 105
!DSPAM:22,4936edf127844578318734!
-- Nathan Ward
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