watchNS/nd.toについて、ここに記述してください。

1. nd.to

$ dnsq ns nd.to a.root-servers.net 

2 nd.to:
265 bytes, 1+0+5+6 records, response, noerror
query: 2 nd.to
authority: to 172800 NS auth02.ns.uu.net
authority: to 172800 NS ns1.iafrica.com
authority: to 172800 NS to.cctld.authdns.ripe.net
authority: to 172800 NS colo.to
authority: to 172800 NS tonic.to
additional: auth02.ns.uu.net 172800 A 198.6.1.82
additional: ns1.iafrica.com 172800 A 196.7.0.139
additional: to.cctld.authdns.ripe.net 172800 28 \040\001\006|\000\340\000\000\000\000\000\000\000\000\001\030
additional: to.cctld.authdns.ripe.net 172800 A 193.0.9.118
additional: colo.to 172800 A 216.74.32.104
additional: tonic.to 172800 A 216.74.32.100

$ dnsq ns nd.to colo.to 

2 nd.to:
91 bytes, 1+0+2+1 records, response, noerror
query: 2 nd.to
authority: nd.to 86400 NS ns.nd.to
authority: nd.to 86400 NS ns.packetblackhole.jp
additional: ns.nd.to 86400 A 210.230.192.36

$ dnsname 210.230.192.36 

ns.netagent.co.jp

$ dnsq any nd.to ns.nd.to 

255 nd.to:
222 bytes, 1+6+0+3 records, response, authoritative, weird ra, noerror
query: 255 nd.to
answer: nd.to 86400 A 210.230.192.36
answer: nd.to 86400 SOA ns.nd.to postmaster.ns.nd.to 13 7200 1800 1209600 86400
answer: nd.to 86400 NS ns.nd.to
answer: nd.to 86400 NS ns2.prox.ne.jp
answer: nd.to 86400 MX 1 mail.nd.to
answer: nd.to 86400 MX 0 mail2.nd.to
additional: ns.nd.to 86400 A 210.230.192.36
additional: mail2.nd.to 86400 A 210.230.192.44
additional: mail.nd.to 86400 A 210.166.209.246

$ dnsq any nd.to ns2.prox.ne.jp 

255 nd.to:
temporary failure

ns2.prox.ne.jp は生きている。通常の返事はする。 -- ToshinoriMaeno 2012-10-14 08:41:04