[outages] Ebay dns record

Jay Ashworth jra at baylink.com
Mon Oct 1 15:31:27 EDT 2012


----- Original Message -----
> From: "Christina Klam" <cklam at ias.edu>

> None of our ISPs' DNS servers can reach ebay. Expanding on that list,
> it appears that the only DNS servers able to dig ebay are the ones
> that cache. Is anyone else seeing this?

Looking good from FiOS St Pete:

=============================================================
jra at princeton:~/.ssh> dig +trace www.ebay.com

; <<>> DiG 9.8.3-P3 <<>> +trace www.ebay.com
;; global options: +cmd
.                       3600    IN      NS      FWDR-8.FWDR-8.FWDR-8.FWDR-8.
.                       3600    IN      NS      FWDR-4.FWDR-4.FWDR-8.FWDR-8.
.                       3600    IN      NS      FWDR-8.FWDR-8.FWDR-8.FWDR-8.
.                       3600    IN      NS      FWDR-4.FWDR-4.FWDR-4.FWDR-4.
;; Received 309 bytes from 192.168.0.1#53(192.168.0.1) in 336 ms

www.ebay.com.           57      IN      A       66.135.200.161
www.ebay.com.           57      IN      A       66.135.200.181
www.ebay.com.           57      IN      A       66.135.210.61
www.ebay.com.           57      IN      A       66.135.210.181
www.ebay.com.           57      IN      A       66.211.181.161
www.ebay.com.           57      IN      A       66.211.181.181
;; Received 126 bytes from 8.8.8.8#53(8.8.8.8) in 47 ms

jra at princeton:~/.ssh> dig +trace @a.root-servers.net www.ebay.com

; <<>> DiG 9.8.3-P3 <<>> +trace @a.root-servers.net www.ebay.com
; (1 server found)
;; global options: +cmd
.                       518400  IN      NS      m.root-servers.net.
.                       518400  IN      NS      a.root-servers.net.
.                       518400  IN      NS      f.root-servers.net.
.                       518400  IN      NS      c.root-servers.net.
.                       518400  IN      NS      d.root-servers.net.
.                       518400  IN      NS      b.root-servers.net.
.                       518400  IN      NS      i.root-servers.net.
.                       518400  IN      NS      j.root-servers.net.
.                       518400  IN      NS      k.root-servers.net.
.                       518400  IN      NS      h.root-servers.net.
.                       518400  IN      NS      e.root-servers.net.
.                       518400  IN      NS      g.root-servers.net.
.                       518400  IN      NS      l.root-servers.net.
;; Received 512 bytes from 198.41.0.4#53(198.41.0.4) in 1174 ms

com.                    172800  IN      NS      a.gtld-servers.net.
com.                    172800  IN      NS      b.gtld-servers.net.
com.                    172800  IN      NS      c.gtld-servers.net.
com.                    172800  IN      NS      d.gtld-servers.net.
com.                    172800  IN      NS      e.gtld-servers.net.
com.                    172800  IN      NS      f.gtld-servers.net.
com.                    172800  IN      NS      g.gtld-servers.net.
com.                    172800  IN      NS      h.gtld-servers.net.
com.                    172800  IN      NS      i.gtld-servers.net.
com.                    172800  IN      NS      j.gtld-servers.net.
com.                    172800  IN      NS      k.gtld-servers.net.
com.                    172800  IN      NS      l.gtld-servers.net.
com.                    172800  IN      NS      m.gtld-servers.net.
;; Received 490 bytes from 199.7.83.42#53(199.7.83.42) in 1357 ms

ebay.com.               172800  IN      NS      sjc-dns1.ebaydns.com.
ebay.com.               172800  IN      NS      sjc-dns2.ebaydns.com.
ebay.com.               172800  IN      NS      smf-dns1.ebaydns.com.
ebay.com.               172800  IN      NS      smf-dns2.ebaydns.com.
;; Received 194 bytes from 192.55.83.30#53(192.55.83.30) in 589 ms

www.ebay.com.           300     IN      A       66.135.210.61
www.ebay.com.           300     IN      A       66.135.210.181
www.ebay.com.           300     IN      A       66.211.181.161
www.ebay.com.           300     IN      A       66.211.181.181
www.ebay.com.           300     IN      A       66.135.200.161
www.ebay.com.           300     IN      A       66.135.200.181
;; Received 126 bytes from 66.135.207.138#53(66.135.207.138) in 86 ms
=============================================================

I note that Google's DNS servers, which my router seems to be pointed at,
seem to be authoritative for *everything*; I'm not sure what I think about
that.  Forcing a.root did show the results I expected, though.

Cheers,
-- jra

-- 
Jay R. Ashworth                  Baylink                       jra at baylink.com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates     http://baylink.pitas.com         2000 Land Rover DII
St Petersburg FL USA               #natog                      +1 727 647 1274


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