Hello
Is there any tool or configuration that allows us to monitor/graph the number of outbound DNS queries toward the Root servers? As you can see in the below examples the first query answered by M root then F root in the second query. ; <<>> DiG 9.7.0-P1 <<>> www.cnn.com +trace ;; global options: +cmd . 450124 IN NS f.root-servers.net. . 450124 IN NS b.root-servers.net. . 450124 IN NS j.root-servers.net. . 450124 IN NS d.root-servers.net. . 450124 IN NS h.root-servers.net. . 450124 IN NS g.root-servers.net. . 450124 IN NS a.root-servers.net. . 450124 IN NS c.root-servers.net. . 450124 IN NS k.root-servers.net. . 450124 IN NS m.root-servers.net. . 450124 IN NS e.root-servers.net. . 450124 IN NS l.root-servers.net. . 450124 IN NS i.root-servers.net. ;; Received 496 bytes from 193.227.177.130#53(193.227.177.130) in 12 ms com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS j.gtld-servers.net. com. 172800 IN NS m.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS e.gtld-servers.net. ;; Received 489 bytes from 202.12.27.33#53(m.root-servers.net) in 68 ms cnn.com. 172800 IN NS ns1.timewarner.net. cnn.com. 172800 IN NS ns3.timewarner.net. cnn.com. 172800 IN NS ns1.p42.dynect.net. cnn.com. 172800 IN NS ns2.p42.dynect.net. ;; Received 190 bytes from 192.43.172.30#53(i.gtld-servers.net) in 64 ms www.cnn.com. 300 IN CNAME turner.map.fastly.net. ;; Received 64 bytes from 204.74.108.238#53(ns1.timewarner.net) in 61 ms ; <<>> DiG 9.7.0-P1 <<>> www.cnn.com +trace ;; global options: +cmd . 450105 IN NS a.root-servers.net. . 450105 IN NS f.root-servers.net. . 450105 IN NS l.root-servers.net. . 450105 IN NS h.root-servers.net. . 450105 IN NS b.root-servers.net. . 450105 IN NS g.root-servers.net. . 450105 IN NS k.root-servers.net. . 450105 IN NS i.root-servers.net. . 450105 IN NS j.root-servers.net. . 450105 IN NS c.root-servers.net. . 450105 IN NS m.root-servers.net. . 450105 IN NS d.root-servers.net. . 450105 IN NS e.root-servers.net. ;; Received 496 bytes from 193.227.177.130#53(193.227.177.130) in 0 ms com. 172800 IN NS j.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS m.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS e.gtld-servers.net. ;; Received 501 bytes from 192.5.5.241#53(f.root-servers.net) in 155 ms cnn.com. 172800 IN NS ns1.timewarner.net. cnn.com. 172800 IN NS ns3.timewarner.net. cnn.com. 172800 IN NS ns1.p42.dynect.net. cnn.com. 172800 IN NS ns2.p42.dynect.net. ;; Received 190 bytes from 192.26.92.30#53(c.gtld-servers.net) in 136 ms www.cnn.com. 300 IN CNAME turner.map.fastly.net. ;; Received 64 bytes from 208.78.70.42#53(ns1.p42.dynect.net) in 67 ms Regards Daniel
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