ccTLD/chについて、ここに記述してください。
$ dig dns1.prevosti.ch @a.root-servers.net
; <<>> DiG 9.11.0-P3 <<>> dns1.prevosti.ch @a.root-servers.net ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21476 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 8, ADDITIONAL: 17 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;dns1.prevosti.ch. IN A ;; AUTHORITY SECTION: ch. 172800 IN NS b.nic.ch. ch. 172800 IN NS c.nic.ch. ch. 172800 IN NS g.nic.ch. ch. 172800 IN NS f.nic.ch. ch. 172800 IN NS h.nic.ch. ch. 172800 IN NS e.nic.ch. ch. 172800 IN NS d.nic.ch. ch. 172800 IN NS a.nic.ch. ;; ADDITIONAL SECTION: b.nic.ch. 172800 IN A 130.59.31.43 b.nic.ch. 172800 IN AAAA 2001:620:0:ff::58 c.nic.ch. 172800 IN A 147.28.0.39 c.nic.ch. 172800 IN AAAA 2001:418:1::39 g.nic.ch. 172800 IN A 194.0.1.40 g.nic.ch. 172800 IN AAAA 2001:678:4::28 f.nic.ch. 172800 IN A 194.146.106.10 f.nic.ch. 172800 IN AAAA 2001:67c:1010:2::53 h.nic.ch. 172800 IN A 85.119.5.230 h.nic.ch. 172800 IN AAAA 2a03:bd80:36::1:203:230 e.nic.ch. 172800 IN A 194.0.17.1 e.nic.ch. 172800 IN AAAA 2001:678:3::1 d.nic.ch. 172800 IN A 200.160.0.5 d.nic.ch. 172800 IN AAAA 2001:12ff:0:a20::5 a.nic.ch. 172800 IN A 130.59.31.41 a.nic.ch. 172800 IN AAAA 2001:620:0:ff::56 ;; Query time: 147 msec ;; SERVER: 198.41.0.4#53(198.41.0.4) ;; WHEN: Fri Apr 07 15:35:57 JST 2017 ;; MSG SIZE rcvd: 529
1. cookie
$ dig dns1.prevosti.ch @a.nic.ch
; <<>> DiG 9.11.0-P3 <<>> dns1.prevosti.ch @a.nic.ch ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 35038 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 3 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ; COOKIE: ef8749c0700426aa4907a38158e73357bcec767a84ac7ebe (good) ;; QUESTION SECTION: ;dns1.prevosti.ch. IN A ;; AUTHORITY SECTION: prevosti.ch. 3600 IN NS dns1.prevosti.ch. prevosti.ch. 3600 IN NS dns6.prevosti.ch. ;; ADDITIONAL SECTION: dns1.prevosti.ch. 3600 IN A 193.93.22.133 dns6.prevosti.ch. 3600 IN A 193.93.21.220 ;; Query time: 280 msec ;; SERVER: 130.59.31.41#53(130.59.31.41) ;; WHEN: Fri Apr 07 15:36:07 JST 2017 ;; MSG SIZE rcvd: 138