vim /etc/squid/squid.conf
http_port 3128 改为 http_port 80 accel vhost vport
cache_peer 115.239.210.27 parent 80 0 originserver name=a
cache_peer_domain a www.qq.com
cache_peer 114.80.143.158 parent 80 0 originserver name=b
cache_peer_domain b www.163.com
192.168.1.117 www.qq.com www.163.com