几组常用的的DNS服务器
常用的公共 DNS 服务器包括：
Google Public DNS (8.8.8.8, 8.8.4.4)
Norton DNS (198.153.192.1, 198.153.194.1)
OpenDNS (208.67.222.222, 208.67.220.220)
OpenDNS Family (208.67.222.123, 208.67.220.123)
Comodo Secure DNS (156.154.70.22, 156.156.71.22)
ScrubIt DNS (67.138.54.100, 207.225.209.66)
DNS Advantage (156.154.70.1, 156.154.71.1)
更换了DNS后,请在命令行模式(快捷键：win+R,输入cmd)中执行 ipconfig /flushdns 以清除DNS缓存.
