蛋疼的南京联通 2 组 DNS 劫持新浪短链接到 127.0.0.1

C:\>nslookup t.cn 221.6.4.66
Server: cache5-nj
Address: 221.6.4.66

Name: t.cn
Address: 127.0.0.1

/////////////////////////////////////////////
C:\>nslookup t.cn 58.240.57.33
Server: cache4-nj
Address: 58.240.57.33

Name: t.cn
Address: 127.0.0.1

/////////////////////////////////////////////
C:\>nslookup t.cn 114.114.114.11
Server: public1.114dns.com
Address: 114.114.114.114

Non-authoritative answer:
Name: t.cn
Address: 114.134.80.138

/////////////////////////////////////////////
C:\>dig @58.240.57.33 -p 53 t.cn +trace

; <<>> DiG 9.10-P2 <<>> @58.240.57.33 -p 53 t.cn +trace
; (1 server found)
;; global options: +cmd
. 34528 IN NS k.root-servers.net.
. 34528 IN NS g.root-servers.net.
. 34528 IN NS b.root-servers.net.
. 34528 IN NS a.root-servers.net.
. 34528 IN NS e.root-servers.net.
. 34528 IN NS f.root-servers.net.
. 34528 IN NS d.root-servers.net.
. 34528 IN NS j.root-servers.net.
. 34528 IN NS h.root-servers.net.
. 34528 IN NS c.root-servers.net.
. 34528 IN NS i.root-servers.net.
. 34528 IN NS l.root-servers.net.
. 34528 IN NS m.root-servers.net.
;; Received 239 bytes from 58.240.57.33#53(58.240.57.33) in 250 ms

cn. 172800 IN NS a.dns.cn.
cn. 172800 IN NS e.dns.cn.
cn. 172800 IN NS d.dns.cn.
cn. 172800 IN NS c.dns.cn.
cn. 172800 IN NS b.dns.cn.
cn. 172800 IN NS ns.cernet.net.
cn. 86400 IN DS 24697 8 2 A8BD8346D72C8C08FCE76D85298A8D58025323487122C5354D6E34AD 857498E3
cn. 86400 IN RRSIG DS 8 1 86400 20151116050000 20151106040000 62530 . cIkjHXH+7U4YBxitv/Zv52MturmIDVBXGSNYgbeSkmhQGTE6xEtilyCP xp7M
ZFHrIksx4YU22jKg/G+rU3yF9/ATV4oSmb3YdiSqASEafsoxhSfP xJyqE/PeDnxTzMpYgijZBBhU2mKQZpvpL9WB07G8ZuSyRhMgrXdbEdgd uiw=
;; Received 503 bytes from 199.7.91.13#53(d.root-servers.net) in 203 ms

t.cn. 86400 IN NS ns1.sina.com.cn.
t.cn. 86400 IN NS ns3.sina.com.cn.
t.cn. 86400 IN NS ns4.sina.com.cn.
t.cn. 86400 IN NS ns2.sina.com.cn.
3QDAQA092EE5BELP64A74EBNB8J53D7E.cn. 21600 IN NSEC3 1 1 10 AEF123AB 3QLMP0QRNQ96G5AFGOPNB7U7IJ4MBP4B NS SOA RRSIG DNSKEY NSEC3PARAM TYPE65534
3QDAQA092EE5BELP64A74EBNB8J53D7E.cn. 21600 IN RRSIG NSEC3 8 2 21600 20151129144357 20151030142026 53988 cn. PrizLnEBoell7ySW1ZKQKLGzIKbd1SdfnFYD6f7UCk6Rb6vT7WEt
a2o+ f2G5hJVzwjphlvD56u2xyHadokyMDX3hZlE/Fi38+hVoOHoLMyxTEXvI kn9BRCfZfOC99HipX6StutvXb2LY4Pqba2icFmMQmCI6SJt8MA/XIndE 1MI=
ONC3D15PCDO0DV9FS2T78HT6CDQV8LJL.cn. 21600 IN NSEC3 1 1 10 AEF123AB ONF4VACH6NENVA9D682V9M515Q9H0EE5 CNAME RRSIG
ONC3D15PCDO0DV9FS2T78HT6CDQV8LJL.cn. 21600 IN RRSIG NSEC3 8 2 21600 20151125130824 20151026122148 53988 cn. XgTPKv4aLnyWLkm1DhOpahcfIPfj1s72aMKrqV1BihE+Qs4mfV6u
jtMJ xjCotYJbtca0TcfUiYFB6MI51p6P+cq+LgqKxncXRdzSmj5Yyjhsk8p3 TEYF9fYT4tpEvXwVRiTFojYAnrxCULFwmYl/FBi89vS2T6bjRg+yNdZN P4Y=
;; Received 639 bytes from 203.119.26.1#53(b.dns.cn) in 46 ms

t.cn. 60 IN A 123.125.106.196
t.cn. 60 IN NS ns2.sina.com.cn.
t.cn. 60 IN NS ns3.sina.com.cn.
t.cn. 60 IN NS ns4.sina.com.cn.
t.cn. 60 IN NS ns1.sina.com.cn.
;; Received 194 bytes from 202.106.184.166#53(ns1.sina.com.cn) in 31 ms