Our minimum recommended specifications for thin clients are a processor running at 400MHz with 128MB RAM and the ability to boot via PXE (a common network boot protocol). Nearly any system sold today and advertised as a thin client exceeds these requirements by a wide margin. We list them here in case you want to try to reuse old hardware that is otherwise obsolete. Server and other hardware recommendations are listed in the “Installation” section.
Let’s start by looking at several wiring schemes to show appropriate methods of using LTSP. The first one, shown in Figure 30.1, is the default install without an Internet connection and is the simplest way to use LTSP.