NS信息查询

http://centralops.net/co/NsLookup.vbs.asp
比如查：yahoo.com
下面就是ns信息
Answer records
name class type data time to live
yahoo.com IN A 66.94.234.13 235s (3m 55s)
yahoo.com IN A 216.109.112.135 235s (3m 55s)
yahoo.com IN NS ns1.yahoo.com 86335s (23h 58m 55s)
yahoo.com IN NS ns2.yahoo.com 86335s (23h 58m 55s)
yahoo.com IN NS ns3.yahoo.com 86335s (23h 58m 55s)
yahoo.com IN NS ns4.yahoo.com 86335s (23h 58m 55s)
yahoo.com IN NS ns5.yahoo.com 86335s (23h 58m 55s)
yahoo.com IN SOA server: ns1.yahoo.com
email: hostmaster@yahoo-inc.com
serial: 2005110829
refresh: 3600
retry: 300
expire: 604800
minimum ttl: 600
1735s (28m 55s)
yahoo.com IN MX preference: 1
exchange: mx1.mail.yahoo.com
7135s (1h 58m 55s)
yahoo.com IN MX preference: 1
exchange: mx2.mail.yahoo.com
7135s (1h 58m 55s)
yahoo.com IN MX preference: 1
exchange: mx3.mail.yahoo.com
7135s (1h 58m 55s)
yahoo.com IN MX preference: 5
exchange: mx4.mail.yahoo.com
7135s (1h 58m 55s)
yahoo.com IN RP email: hostmaster@yahoo-inc.com
txt domain: contact.yahoo.com
1735s (28m 55s)
yahoo.com IN LOC version: 0
size: 100m
horz precision: ±50m
vert precision: ±1m
longitude: 37?23' 30.900" N
latitude: 121?59' 19.000" W
altitude: 7m
1735s (28m 55s)
Authority records
[none]
Additional records
name class type data time to live
ns1.yahoo.com IN A 66.218.71.63 86335s (23h 58m 55s)
ns2.yahoo.com IN A 66.163.169.170 86335s (23h 58m 55s)
ns3.yahoo.com IN A 217.12.4.104 86298s (23h 58m 18s)
ns4.yahoo.com IN A 63.250.206.138 86298s (23h 58m 18s)
ns5.yahoo.com IN A 216.109.116.17 86298s (23h 58m 18s)
mx1.mail.yahoo.com IN A 4.79.181.14 1735s (28m 55s)
mx1.mail.yahoo.com IN A 4.79.181.15 1735s (28m 55s)
mx1.mail.yahoo.com IN A 67.28.113.10 1735s (28m 55s)
mx1.mail.yahoo.com IN A 67.28.113.11 1735s (28m 55s)