Install the 64-bit version of Ubuntu Server on each machine that hosts one or more of the components.
To install Ubuntu Server 18.04:
To install Ubuntu Server 18.04, see the Ubuntu Installation Guide.
After the system is installed, make sure that it’s up to date with the most recent security patches. Open a terminal window and issue the following commands:
sudo apt update
sudo apt upgrade
Now that the system is up to date, you can start installing the components that make up a Mattermost system.