watchNS/rootについて、ここに記述してください。
%dnsq ns . a.root-servers.net
2 .: 492 bytes, 1+13+0+15 records, response, authoritative, noerror query: 2 . answer: . 518400 NS a.root-servers.net answer: . 518400 NS b.root-servers.net answer: . 518400 NS c.root-servers.net answer: . 518400 NS d.root-servers.net answer: . 518400 NS e.root-servers.net answer: . 518400 NS f.root-servers.net answer: . 518400 NS g.root-servers.net answer: . 518400 NS h.root-servers.net answer: . 518400 NS i.root-servers.net answer: . 518400 NS j.root-servers.net answer: . 518400 NS k.root-servers.net answer: . 518400 NS l.root-servers.net answer: . 518400 NS m.root-servers.net additional: a.root-servers.net 518400 A 198.41.0.4 additional: b.root-servers.net 518400 A 192.228.79.201 additional: c.root-servers.net 518400 A 192.33.4.12 additional: d.root-servers.net 518400 A 199.7.91.13 additional: e.root-servers.net 518400 A 192.203.230.10 additional: f.root-servers.net 518400 A 192.5.5.241 additional: g.root-servers.net 518400 A 192.112.36.4 additional: h.root-servers.net 518400 A 128.63.2.53 additional: i.root-servers.net 518400 A 192.36.148.17 additional: j.root-servers.net 518400 A 192.58.128.30 additional: k.root-servers.net 518400 A 193.0.14.129 additional: l.root-servers.net 518400 A 199.7.83.42 additional: m.root-servers.net 518400 A 202.12.27.33 additional: a.root-servers.net 518400 28 \040\001\005\003\272>\000\000\000\000\000\000\000\002\0000 additional: d.root-servers.net 518400 28 \040\001\005\000\000-\000\000\000\000\000\000\000\000\000\015
以下は参考情報
%dnsq ns . a.gtld-servers.net
2 .: 228 bytes, 1+0+13+0 records, response, noerror query: 2 . authority: . 518400 NS d.root-servers.net authority: . 518400 NS e.root-servers.net authority: . 518400 NS f.root-servers.net authority: . 518400 NS g.root-servers.net authority: . 518400 NS h.root-servers.net authority: . 518400 NS i.root-servers.net authority: . 518400 NS j.root-servers.net authority: . 518400 NS k.root-servers.net authority: . 518400 NS l.root-servers.net authority: . 518400 NS m.root-servers.net authority: . 518400 NS a.root-servers.net authority: . 518400 NS b.root-servers.net authority: . 518400 NS c.root-servers.net