Private IP addresses are created on a Linode system when you add a new Linode account. Private IP addresses allow you to access the Linode system from the outside world, but keep your data and traffic private.
Private IP addresses are not visible to the public internet. Anyone on the outside world who tries to connect to your Linode system using a private IP address will be directed to the Linode system’s public IP address.
You can use a private IP address to run a server or application on your Linode system without worrying about the public internet potentially accessing your data or traffic. Private IP addresses are also great for protecting your system from being DDoSed.