If you maintain Linux servers, you almost always have the ability to login with
SSH, but not always have the luxury to login with a local console and keyboard.
In this case, one misconfiguration on a server can cut off your ability to
configure the server permanently.
How to make a Linux server more resistant to your own mistakes? Let's find out.
Single-board computers are often used as Linux servers. Raspberry Pi 4, for
example, has enough system resources to run multiple applications in parallel.
Often, these applications are run separately on different VMs or containers, in
order to enhance security and maintainability. This article shows a way to set
up your Raspberry Pi as a Linux container host and a hypervisor.
