http://computingplugs.com/index.php/SSH_tunnel_for_secure_web_browsing
ssh -D localhost:12000 user@ipaddress
firefox
手动配置代理:sockets主机:localhost,port:12000 sockets v5
network.proxy.socks_remote_dns true
https://addons.mozilla.org/en-US/firefox/addon/2464/