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dns出现了奇怪现象
nslookup
> www.sina.com.cn
Server: ns1.*.gov.cn
Address: 10.0.0.1
DNS request timed out.
timeout was 2 seconds.
timeout (2 secs)
但是查询其他的域名没有问题
我分步查就能成功
> server a.dns.cn
Default Server: a.dns.cn
Address: 203.119.25.1
> www.sina.com.cn
Server: a.dns.cn
Address: 203.119.25.1
Name: www.sina.com.cn
Served by:
- ns2.sina.com.cn
61.172.201.254
sina.com.cn
- ns3.sina.com.cn
202.108.44.55
sina.com.cn
- ns1.sina.com.cn
202.106.184.166
sina.com.cn
> server ns1.sina.com.cn
Default Server: ns1.sina.com.cn
Served by:
- ns2.sina.com.cn
61.172.201.254
sina.com.cn
- ns3.sina.com.cn
202.108.44.55
sina.com.cn
- ns1.sina.com.cn
202.106.184.166
sina.com.cn
> www.sina.com.cn
Server: ns1.sina.com.cn
Served by:
- ns2.sina.com.cn
61.172.201.254
sina.com.cn
- ns3.sina.com.cn
202.108.44.55
sina.com.cn
- ns1.sina.com.cn
202.106.184.166
sina.com.cn
Name: hydra.sina.com.cn
Addresses: 218.30.108.65, 218.30.108.66, 218.30.108.67, 218.30.108.68
218.30.108.69, 218.30.108.72, 218.30.108.73, 218.30.108.74, 218.30.108
.55
218.30.108.56, 218.30.108.57, 218.30.108.58, 218.30.108.59, 218.30.108
.61
218.30.108.62, 218.30.108.63
Aliases: www.sina.com.cn, jupiter.sina.com.cn
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