C:\Users\jluthman>dig ebay.com @4.2.2.2 ; <<>> DiG 9.3.2 <<>> ebay.com @4.2.2.2 ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1415 ;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;ebay.com. IN A ;; ANSWER SECTION: ebay.com. 2554 IN A 66.211.160.88 ebay.com. 2554 IN A 66.135.205.13 ebay.com. 2554 IN A 66.135.205.14 ebay.com. 2554 IN A 66.211.160.87 ;; Query time: 23 msec ;; SERVER: 4.2.2.2#53(4.2.2.2) ;; WHEN: Tue Jan 17 15:30:13 2012 ;; MSG SIZE rcvd: 90 C:\Users\jluthman>dig ebay.com @8.8.8.8 ; <<>> DiG 9.3.2 <<>> ebay.com @8.8.8.8 ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1039 ;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;ebay.com. IN A ;; ANSWER SECTION: ebay.com. 1368 IN A 66.211.160.88 ebay.com. 1368 IN A 66.135.205.13 ebay.com. 1368 IN A 66.135.205.14 ebay.com. 1368 IN A 66.211.160.87 ;; Query time: 36 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Tue Jan 17 15:30:18 2012 ;; MSG SIZE rcvd: 90 Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Tue, Jan 17, 2012 at 3:20 PM, Frank Bulk - iName.com <frnkblk@iname.com> wrote:
We've received two calls complaining about access to www.ebay.com. Further checking shows that none of our DNS servers can resolve either www.ebay.com or ebay.com. DIG returns a "timed out". Flushing our caches made no difference, and our upstream provider's DNS servers are acting the same way.
Digging against 8.8.8.8 works fine, but against the 4 NS servers listed for ebay, they don't, probably because their DNS server is all ebaydns.com.
nagios:/tmp# dig A ebay.com @96.31.0.5
; <<>> DiG 9.7.3 <<>> A ebay.com @96.31.0.5 ;; global options: +cmd ;; connection timed out; no servers could be reached nagios:/tmp# dig A ebay.com @167.142.225.5
; <<>> DiG 9.7.3 <<>> A ebay.com @167.142.225.5 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 41569 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION: ;ebay.com. IN A
;; Query time: 4433 msec ;; SERVER: 167.142.225.5#53(167.142.225.5) ;; WHEN: Tue Jan 17 14:19:12 2012 ;; MSG SIZE rcvd: 26
nagios:/tmp#
nagios:/tmp# dig NS ebay.com @8.8.8.8
; <<>> DiG 9.7.3 <<>> NS ebay.com @8.8.8.8 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58612 ;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION: ;ebay.com. IN NS
;; ANSWER SECTION: ebay.com. 63033 IN NS sjc-dns2.ebaydns.com. ebay.com. 63033 IN NS smf-dns2.ebaydns.com. ebay.com. 63033 IN NS smf-dns1.ebaydns.com. ebay.com. 63033 IN NS sjc-dns1.ebaydns.com.
;; Query time: 37 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Tue Jan 17 14:18:22 2012 ;; MSG SIZE rcvd: 126
nagios:/tmp#
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