Proxy Error
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /.
Reason: DNS lookup failure for: us.dongtaiwang.com
Apache/2.0.52 (CentOS) Server at 2001:470:1f0e:456::2 Port 80
原来是变成了[2001:470:1:5a:225:90ff:fe18:680]。
以后还是直接用www.dongtaiwang6.com:80算了