## page was renamed from DNS/1/CNAME/195.jp ## page was renamed from watchWWW/195.jp watchWWW/195.jpについて、ここに記述してください。 $ dnsq ns www.195.jp a.dns.jp {{{ 2 www.195.jp: 99 bytes, 1+0+2+2 records, response, noerror query: 2 www.195.jp authority: 195.jp 86400 NS 01.dnsv.jp authority: 195.jp 86400 NS 02.dnsv.jp additional: 01.dnsv.jp 86400 A 157.7.32.53 additional: 02.dnsv.jp 86400 A 157.7.33.53 }}} $ dnsq a www.195.jp 01.dnsv.jp {{{ 1 www.195.jp: 97 bytes, 1+2+2+0 records, response, authoritative, noerror query: 1 www.195.jp answer: www.195.jp 300 CNAME 195.jp answer: 195.jp 300 A 221.252.87.98 authority: 195.jp 86400 NS 01.dnsv.jp authority: 195.jp 86400 NS 02.dnsv.jp }}} このanswerにあるAレコードは信用すると危ない。 == unbound == $ dig www.195.jp @127.0.0.2 {{{ ; <<>> DiG 9.9.5-3ubuntu0.5-Ubuntu <<>> www.195.jp @127.0.0.2 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36667 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.195.jp. IN A ;; ANSWER SECTION: www.195.jp. 300 IN CNAME 195.jp. 195.jp. 300 IN A 221.252.87.98 ;; Query time: 287 msec ;; SERVER: 127.0.0.2#53(127.0.0.2) ;; WHEN: Fri Dec 11 22:01:15 JST 2015 ;; MSG SIZE rcvd: 69 }}} qname minimisation yesのはずが、そういう振る舞いになっていない。 logがおかしいという可能性もゼロではないが。 {{{ [1449838875] unbound[1144:0] info: resolving www.195.jp. A IN [1449838875] unbound[1144:0] info: response for www.195.jp. A IN [1449838875] unbound[1144:0] info: reply from <.> 199.7.83.42#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: resolving jp. NS IN [1449838875] unbound[1144:0] info: response for jp. NS IN [1449838875] unbound[1144:0] info: reply from <.> 192.112.36.4#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: resolving d.dns.jp. A IN [1449838875] unbound[1144:0] info: resolving e.dns.jp. A IN [1449838875] unbound[1144:0] info: resolving f.dns.jp. A IN [1449838875] unbound[1144:0] info: resolving g.dns.jp. A IN [1449838875] unbound[1144:0] info: resolving a.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving b.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving c.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving d.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving e.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving b.dns.jp. A IN [1449838875] unbound[1144:0] info: resolving c.dns.jp. A IN [1449838875] unbound[1144:0] info: resolving f.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving a.dns.jp. A IN [1449838875] unbound[1144:0] info: response for d.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 210.138.175.244#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: resolving dns.jp. NS IN [1449838875] unbound[1144:0] info: response for dns.jp. NS IN [1449838875] unbound[1144:0] info: reply from 203.119.1.1#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: resolving nsa.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving nsb.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving nse.dns.jp. A IN [1449838875] unbound[1144:0] info: resolving nsf.dns.jp. A IN [1449838875] unbound[1144:0] info: resolving nsg.dns.jp. A IN [1449838875] unbound[1144:0] info: resolving nsd.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving nse.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving nsb.dns.jp. A IN [1449838875] unbound[1144:0] info: resolving nsd.dns.jp. A IN [1449838875] unbound[1144:0] info: resolving nsf.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving nsa.dns.jp. A IN [1449838875] unbound[1144:0] info: response for c.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 203.119.1.1#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for d.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.1.1#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for g.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 203.119.1.1#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for e.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 203.119.1.1#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for f.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.40.1#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for b.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.40.1#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for a.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.40.1#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for f.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 203.119.40.1#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for a.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 202.12.30.131#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for b.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 150.100.6.8#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for e.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 150.100.6.8#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for jp. NS IN [1449838875] unbound[1144:0] info: reply from 192.50.43.53#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for d.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.40.4#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for d.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 203.119.40.4#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for dns.jp. NS IN [1449838875] unbound[1144:0] info: reply from 203.119.40.4#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for a.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 203.119.40.4#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for nsa.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 210.138.175.245#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for nsb.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.1.4#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for nse.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 202.12.30.134#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for nsf.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 202.12.30.134#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for nse.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 210.138.175.245#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for nsd.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 202.12.30.134#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for nsf.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.40.4#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for nsa.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 202.12.30.134#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for g.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 210.138.175.245#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for e.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 202.12.30.134#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for b.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.1.4#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for f.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 202.12.30.134#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for c.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 192.50.43.53#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: resolving dns.jp. NS IN [1449838875] unbound[1144:0] info: response for nsb.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 150.100.6.12#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for c.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 150.100.6.12#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for c.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 150.100.6.12#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for e.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.40.4#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for d.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.1.4#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for nsb.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.1.4#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for d.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 203.119.40.4#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for b.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 150.100.6.12#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for nsd.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 192.50.43.153#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for a.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 192.50.43.153#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for f.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 192.50.43.153#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for nse.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.40.4#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for nsd.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 202.12.30.134#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for nsf.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 202.12.30.134#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for b.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.40.4#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for nsg.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 192.50.43.153#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for c.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 203.119.1.4#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for g.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 210.138.175.245#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for f.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 203.119.40.4#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for nsb.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 210.138.175.245#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for nse.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 150.100.6.12#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for e.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 210.138.175.245#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for e.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 150.100.6.12#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for b.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 203.119.1.4#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for nsd.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 210.138.175.245#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for f.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 202.12.30.134#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for nsg.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 210.138.175.245#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for a.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 192.50.43.153#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for nsa.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 192.50.43.153#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for a.dns.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 150.100.6.12#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for nsf.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 192.50.43.153#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for nsa.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 192.50.43.153#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for c.dns.jp. A IN [1449838875] unbound[1144:0] info: reply from 192.50.43.153#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for www.195.jp. A IN [1449838875] unbound[1144:0] info: reply from 156.154.100.5#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: resolving 195.jp. NS IN [1449838875] unbound[1144:0] info: response for www.195.jp. A IN [1449838875] unbound[1144:0] info: reply from <195.jp.> 157.7.33.53#53 [1449838875] unbound[1144:0] info: query response was CNAME [1449838875] unbound[1144:0] info: resolving www.195.jp. A IN [1449838875] unbound[1144:0] info: response for www.195.jp. A IN [1449838875] unbound[1144:0] info: reply from 203.119.1.1#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for www.195.jp. A IN [1449838875] unbound[1144:0] info: reply from <195.jp.> 157.7.32.53#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for 195.jp. NS IN [1449838875] unbound[1144:0] info: reply from 156.154.100.5#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: resolving 01.dnsv.jp. A IN [1449838875] unbound[1144:0] info: resolving 02.dnsv.jp. A IN [1449838875] unbound[1144:0] info: response for 195.jp. NS IN [1449838875] unbound[1144:0] info: reply from <195.jp.> 157.7.32.53#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for 02.dnsv.jp. A IN [1449838875] unbound[1144:0] info: reply from 210.138.175.244#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: resolving dnsv.jp. NS IN [1449838875] unbound[1144:0] info: response for 01.dnsv.jp. A IN [1449838875] unbound[1144:0] info: reply from 210.138.175.244#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: response for 02.dnsv.jp. A IN [1449838875] unbound[1144:0] info: reply from 157.7.33.53#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for 01.dnsv.jp. A IN [1449838875] unbound[1144:0] info: reply from 157.7.33.53#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for dnsv.jp. NS IN [1449838875] unbound[1144:0] info: reply from 150.100.6.8#53 [1449838875] unbound[1144:0] info: query response was REFERRAL [1449838875] unbound[1144:0] info: resolving 04.dnsv.jp. A IN [1449838875] unbound[1144:0] info: resolving 03.dnsv.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving 04.dnsv.jp. AAAA IN [1449838875] unbound[1144:0] info: resolving 03.dnsv.jp. A IN [1449838875] unbound[1144:0] info: response for 01.dnsv.jp. A IN [1449838875] unbound[1144:0] info: reply from 157.7.33.53#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for 02.dnsv.jp. A IN [1449838875] unbound[1144:0] info: reply from 157.7.33.35#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for dnsv.jp. NS IN [1449838875] unbound[1144:0] info: reply from 157.7.32.53#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for 04.dnsv.jp. A IN [1449838875] unbound[1144:0] info: reply from 157.7.33.53#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for 03.dnsv.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 157.7.32.35#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for 04.dnsv.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 157.7.32.35#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for 03.dnsv.jp. A IN [1449838875] unbound[1144:0] info: reply from 157.7.32.53#53 [1449838875] unbound[1144:0] info: query response was nodata ANSWER [1449838875] unbound[1144:0] info: response for 04.dnsv.jp. A IN [1449838875] unbound[1144:0] info: reply from 157.7.33.35#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for 03.dnsv.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 157.7.32.35#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for 04.dnsv.jp. AAAA IN [1449838875] unbound[1144:0] info: reply from 157.7.33.53#53 [1449838875] unbound[1144:0] info: query response was ANSWER [1449838875] unbound[1144:0] info: response for 03.dnsv.jp. A IN [1449838875] unbound[1144:0] info: reply from 157.7.33.35#53 [1449838875] unbound[1144:0] info: query response was ANSWER }}}