One of the first things you want to do if you’ve just installed Raspbian on your Pi is to change the hostname. You can change your hostname by following these steps.
Steps You can use the ‘hostnamectl set-hostname [name]’ command, but that does not update /etc/hosts and causes issues with Docker and other networking services. I prefer to update /etc/hostname and /etc/hosts manually.
Change hostname sudo nano /etc/hostname Change raspberrypi to your desired hostname Hit CTRL+O and then ENTER to Save Hit CTRL+X to Exit
What is docker? Docker is an open-source project for automating the deployment of applications as portable, self-sufficient containers that can run on the cloud or on-premises. Docker is also a company that promotes and evolves this technology. Docker works in collaboration with the cloud, Linux, and Windows vendors, including Microsoft.
How to install Docker With one of the latest releases of Docker. They added official support for Raspbian. You now can easily install Docker on your Raspberry Pi with one simple command.
