1.隐藏IP，彻底让HTTP_X_FORWARDED_FOR 中不出现客户端IP
forwarded_for delete
2.上传文件出错的话
ignore_expected_100 on
3.客户端验证
最简单的办法
先生成密码
htpasswd /etc/squid3/ncsa_passwd xxxx(用户名),然后输入密码
再加以下配置
auth_param basic program /usr/lib/squid3/ncsa_auth /etc/squid3/ncsa_passwd
acl authenticated proxy_auth REQUIDED
http_access allow authenticated