A control panel is a graphical interface that allows users to manage settings and features. They are often found in the context of native apps on desktop or mobile operating systems, where they can be used to configure applications and the operating system itself. Control panels are also found on the web, where they most often manage web applications and infrastructure.
The nature and function of a control panel depends on its purpose. For example, web hosting services often provide control panels which allow you to see an overview of your servers and resources, as well as to create, manage, configure, and delete those resources.
Webmin is one popular web-based control panel that is used for managing Linux-based servers. For more information, please see How To Install Webmin on Ubuntu 20.04.
For information on other control panel software, please look at our Control Panels tag page which has links to relevant tutorials and Q&A.