Hi, Here is the dig results, yes it seems only happened to www
gizmos:~ david$ dig www.cisco.com +trace ; <<>> DiG 9.8.3-P1 <<>> www.cisco.com +trace ;; global options: +cmd . 131 IN NS c.root-servers.net. . 131 IN NS d.root-servers.net. . 131 IN NS i.root-servers.net. . 131 IN NS l.root-servers.net. . 131 IN NS a.root-servers.net. . 131 IN NS f.root-servers.net. . 131 IN NS k.root-servers.net. . 131 IN NS b.root-servers.net. . 131 IN NS m.root-servers.net. . 131 IN NS e.root-servers.net. . 131 IN NS j.root-servers.net. . 131 IN NS h.root-servers.net. . 131 IN NS g.root-servers.net. ;; Received 228 bytes from 103.234.208.150#53(103.234.208.150) in 2473 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 491 bytes from 198.97.190.53#53(198.97.190.53) in 799 ms cisco.com. 172800 IN NS ns1.cisco.com. cisco.com. 172800 IN NS ns2.cisco.com. cisco.com. 172800 IN NS ns3.cisco.com. ;; Received 217 bytes from 192.26.92.30#53(192.26.92.30) in 1197 ms cisco.com. 86400 IN SOA edns-rtp5-1-l. postmaster.cisco.com. 16034550 7200 1800 864000 86400 ;; Received 91 bytes from 72.163.5.201#53(72.163.5.201) in 243 ms gizmos:~ david$ dig cisco.com +trace ; <<>> DiG 9.8.3-P1 <<>> cisco.com +trace ;; global options: +cmd . 120 IN NS b.root-servers.net. . 120 IN NS c.root-servers.net. . 120 IN NS j.root-servers.net. . 120 IN NS e.root-servers.net. . 120 IN NS m.root-servers.net. . 120 IN NS l.root-servers.net. . 120 IN NS h.root-servers.net. . 120 IN NS a.root-servers.net. . 120 IN NS g.root-servers.net. . 120 IN NS k.root-servers.net. . 120 IN NS i.root-servers.net. . 120 IN NS d.root-servers.net. . 120 IN NS f.root-servers.net. ;; Received 228 bytes from 103.234.208.150#53(103.234.208.150) in 48 ms com. 172800 IN NS d.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS e.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS m.gtld-servers.net. com. 172800 IN NS j.gtld-servers.net. com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. ;; Received 499 bytes from 192.36.148.17#53(192.36.148.17) in 41 ms cisco.com. 172800 IN NS ns1.cisco.com. cisco.com. 172800 IN NS ns2.cisco.com. cisco.com. 172800 IN NS ns3.cisco.com. ;; Received 213 bytes from 192.31.80.30#53(192.31.80.30) in 355 ms cisco.com. 86400 IN A 72.163.4.161 cisco.com. 86400 IN NS ns2.cisco.com. cisco.com. 86400 IN NS ns3.cisco.com. cisco.com. 86400 IN NS ns1.cisco.com. ;; Received 229 bytes from 72.163.5.201#53(72.163.5.201) in 415 ms Thank you Best regards, David S. ------------------------------------------------ e. da...@zeromail.us On Sat, Mar 19, 2016 at 12:53 PM, John Kinsella <j...@thrashyour.com> wrote: > Confirmed in Northern California, on all 3 primary NS servers. A little > Friday night maintenance window, maybe? > > Looks like it’s just the www record... > > > On Mar 18, 2016, at 10:38 PM, Dmitry Sherman <dmi...@interhost.net> > wrote: > > > > dig www.cisco.com @8.8.8.8 > > > > > > ; <<>> DiG 9.8.3-P1 <<>> www.cisco.com @8.8.8.8 > > ;; global options: +cmd > > ;; Got answer: > > ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 60416 > > ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 > > > > > > ;; QUESTION SECTION: > > ;www.cisco.com. IN A > > > > > > ;; AUTHORITY SECTION: > > cisco.com. 1247 IN SOA edns-rtp5-1-l. > postmaster.cisco.com. 16034550 7200 1800 864000 86400 > > > > > > ;; Query time: 94 msec > > ;; SERVER: 8.8.8.8#53(8.8.8.8) > > ;; WHEN: Sat Mar 19 07:36:22 2016 > > ;; MSG SIZE rcvd: 91 > > > > > > > > > > > > — > > Dmitry Sherman > > Interhost Networks Ltd > > dmi...@interhost.net > > office: 972-74-7029881 > > mobile: 972-54-3181182 > > http://www.interhost.co.il > > > > > > > > > > > >> > >