deb http://mirrors.aliyun.com/debian jessie main contrib non-free deb-src http://mirrors.aliyun.com/debian jessie main contrib non-free deb http://mirrors.aliyun.com/debian jessie-updates main contrib non-free deb http://mirrors.aliyun.com/debian jessie-backports main contrib non-free deb-src http://mirrors.aliyun.com/debian jessie-updates main contrib non-free deb http://mirrors.aliyun.com/debian-security jessie/updates main contrib non-free deb-src http://mirrors.aliyun.com/debian-security jessie/updates main contrib non-free