watchNS/verisign.netについて、ここに記述してください。
$ dnsq a ocsp.verisign.net a2.nstld.com
1 ocsp.verisign.net: 489 bytes, 1+0+7+14 records, response, noerror query: 1 ocsp.verisign.net authority: ocsp.verisign.net 900 NS ns102.nstld.net authority: ocsp.verisign.net 900 NS ns101.nstld.net authority: ocsp.verisign.net 900 NS ns104.nstld.net authority: ocsp.verisign.net 900 NS ns105.nstld.net authority: ocsp.verisign.net 900 NS ns106.nstld.net authority: ocsp.verisign.net 900 NS ns103.nstld.net authority: ocsp.verisign.net 900 NS ns100.nstld.net additional: ns100.nstld.net 3600 A 199.7.59.206 additional: ns100.nstld.net 3600 AAAA 2001:503:ff39:10ff::206 additional: ns101.nstld.net 3600 A 199.7.48.206 additional: ns101.nstld.net 3600 AAAA 2001:503:3227:10ff::206 additional: ns102.nstld.net 3600 A 199.7.54.206 additional: ns102.nstld.net 3600 AAAA 2001:503:5ae2:10ff::206 additional: ns103.nstld.net 3600 A 199.7.55.206 additional: ns103.nstld.net 3600 AAAA 2001:501:f3da:10ff::206 additional: ns104.nstld.net 3600 A 199.7.58.206 additional: ns104.nstld.net 3600 AAAA 2001:502:8c25:10ff::206 additional: ns105.nstld.net 3600 A 199.7.55.206 additional: ns105.nstld.net 3600 AAAA 2001:503:f3da:10ff::206 additional: ns106.nstld.net 3600 A 199.7.52.206 additional: ns106.nstld.net 3600 AAAA 2001:502:be98:10ff::206
$ dnsq a ocsp.verisign.net ns102.nstld.net
1 ocsp.verisign.net: 51 bytes, 1+1+0+0 records, response, authoritative, noerror query: 1 ocsp.verisign.net answer: ocsp.verisign.net 60 A 199.7.55.72
$ dnsq any ocsp.verisign.net ns102.nstld.net
255 ocsp.verisign.net: 77 bytes, 1+1+1+0 records, response, authoritative, noerror query: 255 ocsp.verisign.net answer: ocsp.verisign.net 60 A 199.7.48.72 authority: verisign.net 500 NS ns102.nstld.net
$ dnsq any ocsp.verisign.net ns100.nstld.net
255 ocsp.verisign.net: 77 bytes, 1+1+1+0 records, response, authoritative, noerror query: 255 ocsp.verisign.net answer: ocsp.verisign.net 60 A 199.7.52.72 authority: verisign.net 500 NS ns100.nstld.net