A DNS Server for ChinaUnicom Dalian
maybe the best DNS server for chinaunicom in Dalian area.
usage for mac os x:
sudo networksetup -setdnsservers Wi-Fi 192.168.123.97 `nslookup ads-b.zhenggangzhao.org 8.8.8.8| grep Address| grep -v '#53'| tr -d ' '| cut -d ':' -f 2` 1.1.1.1 8.8.8.8 2001:470:20::2