C:\Documents and Settings\Administrator.TSINGHUA-QBVVR1

nslookup

Default Server:

dns-a.tsinghua.edu.cn

Address:

166.111.8.28

set type=ns

server ns.xinnet.cn

Default Server:

ns.xinnet.cn

Address:

202.106.124.195

ls sina.com.cn

[ns.xinnet.cn]

然后就没有反应了……