watchNS/jp.msn.com/2について、ここに記述してください。 -- ToshinoriMaeno <>  この対応の意味は? $ dnsqr a jp.msn.com {{{ 1 jp.msn.com: 219 bytes, 1+4+3+3 records, response, noerror query: 1 jp.msn.com answer: jp.msn.com 900 CNAME static.msn.com.c.footprint.net answer: static.msn.com.c.footprint.net 230 A 192.221.123.252 answer: static.msn.com.c.footprint.net 230 A 8.27.253.125 answer: static.msn.com.c.footprint.net 230 A 8.26.197.254 authority: c.footprint.net 86400 NS g.ns.c.footprint.net authority: c.footprint.net 86400 NS f.ns.c.footprint.net authority: c.footprint.net 86400 NS b.ns.c.footprint.net additional: g.ns.c.footprint.net 172800 A 192.221.69.51 additional: f.ns.c.footprint.net 172800 A 192.221.76.51 additional: b.ns.c.footprint.net 172800 A 209.84.2.47 }}} ------ $ dnsq a jp.msn.com ns1.msft.net {{{ 1 jp.msn.com: 72 bytes, 1+1+0+0 records, response, authoritative, noerror query: 1 jp.msn.com answer: jp.msn.com 900 CNAME static.msn.com.c.footprint.net }}}