Linux/apt

unattended upgrades

apt install unattended-upgrades
dpkg-reconfigure --priority=low unattended-upgrades

compare mirrors

http://mirrors.ubuntu.com/DE.txt

curl -s http://mirrors.ubuntu.com/DE.txt | xargs -n1 -I {} sh -c 'echo `curl -r 0-1024000 -s -w %{speed_download} -o /dev/null {}/ls-lR.gz` {}' |sort -gr