The following information is derived from the plugin description.

The Hosting plugin allows you to restrict access to the core settings of the server in a hosted environment. It is responsible for restricting the access of regular administrator users so that they cannot change settings such as the web server configuration used to run the server.

The Master account now acts as the primary administrative access.

The plugin should be installed by downloading it from the public store at https://store.inetsoftware.de/pid/hosting and placing it in the plugins directory of the server installation to protect it from being removed. Otherwise, administrative users will still be able to uninstall it using the Plugin Store.

If the plugin is installed without the Master account enabled, an administrative user will be given temporary access to the login settings for the sole purpose of adding the master account login and providing a password.