; <<>> DiG 9.4.1-P1 <<>> +trace +all ustc.edu.cn soa ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 410 ;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14 ;; QUESTION SECTION: ;. IN NS ;; ANSWER SECTION: . 130540 IN NS j.root-servers.net. . 130540 IN NS m.root-servers.net. . 130540 IN NS l.root-servers.net. . 130540 IN NS e.root-servers.net. . 130540 IN NS d.root-servers.net. . 130540 IN NS h.root-servers.net. . 130540 IN NS f.root-servers.net. . 130540 IN NS b.root-servers.net. . 130540 IN NS i.root-servers.net. . 130540 IN NS a.root-servers.net. . 130540 IN NS c.root-servers.net. . 130540 IN NS k.root-servers.net. . 130540 IN NS g.root-servers.net. ;; ADDITIONAL SECTION: a.root-servers.net. 604666 IN A 198.41.0.4 a.root-servers.net. 604666 IN AAAA 2001:503:ba3e::2:30 b.root-servers.net. 476528 IN A 192.228.79.201 c.root-servers.net. 345911 IN A 192.33.4.12 d.root-servers.net. 304260 IN A 128.8.10.90 d.root-servers.net. 304260 IN AAAA 2001:500:2d::d e.root-servers.net. 476528 IN A 192.203.230.10 f.root-servers.net. 734 IN A 192.5.5.241 f.root-servers.net. 305610 IN AAAA 2001:500:2f::f g.root-servers.net. 1398 IN A 192.112.36.4 h.root-servers.net. 563249 IN A 128.63.2.53 h.root-servers.net. 563249 IN AAAA 2001:500:1::803f:235 i.root-servers.net. 604774 IN A 192.36.148.17 i.root-servers.net. 604774 IN AAAA 2001:7fe::53 ;; Query time: 7 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Wed May 23 14:02:21 2012 ;; MSG SIZE rcvd: 512 ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 332 ;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 8 ;; QUESTION SECTION: ;ustc.edu.cn. IN SOA ;; AUTHORITY SECTION: cn. 172800 IN NS a.dns.cn. cn. 172800 IN NS e.dns.cn. cn. 172800 IN NS ns.cernet.net. cn. 172800 IN NS b.dns.cn. cn. 172800 IN NS c.dns.cn. cn. 172800 IN NS d.dns.cn. ;; ADDITIONAL SECTION: a.dns.cn. 172800 IN A 203.119.25.1 a.dns.cn. 172800 IN AAAA 2001:dc7::1 b.dns.cn. 172800 IN A 203.119.26.1 c.dns.cn. 172800 IN A 203.119.27.1 d.dns.cn. 172800 IN A 203.119.28.1 d.dns.cn. 172800 IN AAAA 2001:dc7:1000::1 e.dns.cn. 172800 IN A 203.119.29.1 ns.cernet.net. 172800 IN A 202.112.0.44 ;; Query time: 35 msec ;; SERVER: 2001:7fe::53#53(i.root-servers.net) ;; WHEN: Wed May 23 14:02:21 2012 ;; MSG SIZE rcvd: 292 ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 78 ;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 5, ADDITIONAL: 2 ;; QUESTION SECTION: ;ustc.edu.cn. IN SOA ;; AUTHORITY SECTION: edu.cn. 172800 IN NS dns2.edu.cn. edu.cn. 172800 IN NS deneb.dfn.de. edu.cn. 172800 IN NS dns.edu.cn. edu.cn. 172800 IN NS ns2.cuhk.hk. edu.cn. 172800 IN NS ns2.cernet.net. ;; ADDITIONAL SECTION: dns.edu.cn. 172800 IN A 202.112.0.35 dns2.edu.cn. 172800 IN A 202.112.0.13 ;; Query time: 194 msec ;; SERVER: 2001:dc7:1000::1#53(d.dns.cn) ;; WHEN: Wed May 23 14:02:21 2012 ;; MSG SIZE rcvd: 177 ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1199 ;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2 ;; QUESTION SECTION: ;ustc.edu.cn. IN SOA ;; AUTHORITY SECTION: ustc.edu.cn. 172800 IN NS NS.ustc.edu.cn. ustc.edu.cn. 172800 IN NS MX.ustc.edu.cn. ;; ADDITIONAL SECTION: MX.ustc.edu.cn. 172800 IN A 202.38.64.56 NS.ustc.edu.cn. 172800 IN A 202.38.64.1 ;; Query time: 194 msec ;; SERVER: 2001:250:c006::8#53(ns2.cernet.net) ;; WHEN: Wed May 23 14:02:22 2012 ;; MSG SIZE rcvd: 95 ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1005 ;; flags: qr aa ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 3 ;; QUESTION SECTION: ;ustc.edu.cn. IN SOA ;; ANSWER SECTION: ustc.edu.cn. 1200 IN SOA ns.ustc.edu.cn. james.ustc.edu.cn. 1323 1800 900 604800 600 ;; AUTHORITY SECTION: ustc.edu.cn. 1200 IN NS ns.ustc.edu.cn. ustc.edu.cn. 1200 IN NS mx.ustc.edu.cn. ;; ADDITIONAL SECTION: mx.ustc.edu.cn. 1200 IN A 202.38.64.56 ns.ustc.edu.cn. 1200 IN A 202.38.64.1 ns.ustc.edu.cn. 1200 IN AAAA 2001:da8:d800::1 ;; Query time: 169 msec ;; SERVER: 202.38.64.56#53(MX.ustc.edu.cn) ;; WHEN: Wed May 23 14:02:23 2012 ;; MSG SIZE rcvd: 165
; <<>> DiG 9.4.1-P1 <<>> www.ustc.edu.cn aaaa ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 929 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;www.ustc.edu.cn. IN AAAA ;; AUTHORITY SECTION: ustc.edu.cn. 600 IN SOA ns.ustc.edu.cn. james.ustc.edu.cn. 1323 1800 900 604800 600 ;; Query time: 5 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Wed May 23 14:02:23 2012 ;; MSG SIZE rcvd: 78
Checking other options ...
succeeded as ipv6.ustc.edu.cn.
Connection failed: IO::Socket::INET6: connect: Connection timed out
no answer from 2001:da8:d800:0:0:0:0:66
1 2001:44b8:60::1 0.689 ms 0.610 ms 0.466 ms 2 2001:44b8:8060:18::6 0.762 ms 0.828 ms 0.593 ms 3 2001:44b8:8060:34::1 1.510 ms 1.625 ms 0.708 ms 4 2001:44b8:b060:7::2 20.188 ms 20.478 ms 20.099 ms 5 2001:44b8:b070:1::12 20.369 ms 20.380 ms 20.176 ms 6 2001:44b8:f0a0:5::1 141.339 ms 121.270 ms 121.171 ms 7 2001:218:2000:5000::15 122.444 ms 121.252 ms 121.161 ms 8 2001:218:0:2000::91 121.707 ms 121.716 ms 183.703 ms 9 2001:218:0:2000::13e 172.979 ms 173.121 ms 173.005 ms 10 2001:218:0:2000::159 175.117 ms 174.891 ms 174.315 ms 11 2001:218:0:6000::156 173.524 ms 174.191 ms 173.550 ms 12 2001:7fa:0:1::ca28:a1be 142.799 ms 142.126 ms 143.054 ms 13 2001:252:0:101::1 197.593 ms 196.666 ms 198.972 ms 14 2001:252:0:1::1 191.337 ms 189.530 ms 190.864 ms 15 2001:da8:1:1::2 243.696 ms 247.871 ms 244.642 ms 16 2001:da8:1:3::2 253.892 ms 252.422 ms 252.757 ms 17 2001:da8:1:13::2 297.931 ms 300.310 ms 300.848 ms 18 2001:da8:1:514::2 315.962 ms 301.475 ms 299.727 ms 19 2001:da8:b3:1001::2 324.603 ms 324.039 ms 319.283 ms 20 * * * 21 * * * 22 * * * 23 * * * 24 * * * 25 * * * 26 * * * 27 * * * 28 * * * 29 * * * 30 * * *
Last Updated: Wed May 23 04:39:07 2012 UTC