====== Archlinux ======
===== Mirror =====
  * Use best available mirror
<code>
sudo reflector --latest 200 --protocol http --protocol https --sort rate --save /etc/pacman.d/mirrorlist
</code>

===== Updates =====
  * Restart systemd with PID # 1 without rebooting Linux box
<code>
systemctl daemon-reexec
</code>