How to create, store and connect with SSH keys.
This post covers secure erasing a drive with hdparm.
Increase memory to 1GB or higher
This post covers adding UniFi controller software to apt
This post explains changing a netplan config from DHCP to static. You can reverse the steps to change it to DHCP.
More than you probably want to know about chmod.
This post explains updating netplan and /etc/network/interfaces configs
Create or change “Enabled” (dword) to 0
Stop wuauserv then delete or rename C:\Windows\SoftwareDistribution