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If you plan on installing the Ubuntu Server 20.04LTS distribution directly on a headless server, your computer must support a 64‐bit processor architecture. Any of the following will work fine:

 AMD amd64

 ARM arm64

 IBM Z s390x

 Intel amd64

 LinuxONE s390x

 POWER8 or 9 ppc64el

Besides having the proper processor on your system, you need to have enough resources available to avoid a sluggish system. Table 2.1 shows the recommended resources to support a well‐running Ubuntu Server distro.

TABLE 2.1: Recommended Server Resources for Ubuntu Server Distribution

RESOURCE	MINIMUM	RECOMMENDED
CPU	1 GHz	1 or more GHz
Memory	1 GB	2 or more GB
Disk space	2.5 GB	10 or more GB

Keep in mind that these recommendations are only for the operating system. Increase these resources to meet the needs of the application(s) you will run on the server.

Not everyone has access to a physical server. But you can set up a virtual environment on a laptop or some old desktop you have stuffed away in your closet. Using a virtualized system on your daily laptop provides a great deal of flexibility. You can learn about Linux while sitting in the park!