#Debian
#deb http://deb.debian.org/debian stretch main
#deb http://security.debian.org/debian-security stretch/updates main
#deb http://deb.debian.org/debian stretch-updates main

#Aliyun
deb http://mirrors.aliyun.com/debian/ stretch main
deb http://mirrors.aliyun.com/debian-security stretch/updates main
deb http://mirrors.aliyun.com/debian/ stretch-updates main