# deb http://ftp.debian.org/debian buster main

deb http://ftp.debian.org/debian buster main
deb-src http://ftp.debian.org/debian buster main

deb http://security.debian.org/debian-security buster/updates main
deb-src http://security.debian.org/debian-security buster/updates main

# buster backports
deb http://ftp.debian.org/debian buster-backports main