Administration is a crucial task that must be diligently carried out. A properly maintained and administered ArcGIS Server site will run efficiently, smoothly, and dependably. In this chapter, we started at the ground floor and learned about how to access administrative functions through ArcGIS Server Manager, ArcCatalog, and the REST Admin. We looked at a wide array of administrative tasks from log settings, backup and restore, and resetting and changing the ArcGIS Server primary site account. We then dove into the ArcGIS Server REST Admin and learned how to navigate around to work with tokens, manage services, system settings, logs, and data settings. We will soon use our familiarity with the REST Admin in Chapter 7, Scripting Administrative Tasks, where we will interact with the REST Admin through Python scripts, allowing us to automate administrative tasks. However, first, in the next chapter, we will look at Portal for ArcGIS administration.