Certificate Authority
For more information on the Step Certificate Authority and how to install it, it is highly recommended to check out their own documentation. These instructions are intentionally short as security considerations are often changing, and information provided here may be out of date when reading.
Install the Package
wget https://dl.smallstep.com/cli/docs-ca-install/latest/step-cli_amd64.deb
sudo dpkg -i step-cli_amd64.deb
Initialize + Setup
# This command is interactive, fill out all the fields before continuing
step ca init
# Run the CA
step-ca $(step path)/config/ca.json
From here, it is up to you to properly configure the step-ca for your environment. A good place to start is looking at the guide on productionizing step-ca.