deb http://ftp.fi.muni.cz/pub/linux/debian/  stable main contrib non-free
deb-src http://ftp.fi.muni.cz/pub/linux/debian/  stable main contrib non-free

deb http://security.debian.org/ stable/updates main contrib non-free
deb-src http://security.debian.org/ stable/updates main contrib non-free
