In this description, we will build the Ubuntu 18.04 LTS (Bionic Beaver) minimal server, which will be the building block of many more descriptions. Ubuntu has been providing support for members of the LTS (Long Term Support) family for five years, so we will receive updates for version 18.04 until April 2023. This provides an excellent basis for installing a server - which we want to run securely for many years to come. On this page, we will start with the installation steps, and then on the next page we will finish with some command line settings.