Yahoo DNS broken?

Nathan Ward nanog at daork.net
Wed Dec 3 14:41:10 CST 2008


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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