docs: add extra terms to glossary

Author: davidekete

adsys/reference/glossary.md

@@ -6,28 +6,30 @@ Pay particular attention to Ubuntu- or Linux-specific
 concepts, tools or packages that a Windows users might
 not be familiar with.
 -->
-
+- **Active Directory (AD)**: A directory service developed by Microsoft that provides centralized authentication, authorization, and management of users, computers, and resources in a networked environment.
+- **Administrative Templates**: A set of policy settings that allow administrators to configure user and computer settings in a Windows-based Active Directory environment, often managed via Group Policy Objects (GPOs).
 - [**adcli**](https://manpages.ubuntu.com/manpages/xenial/man8/adcli.8.html): A command-line tool for managing Active Directory (AD) domain membership on Linux.
-- **Adsys**: A tool that allows system administrators to manage Ubuntu machines using Microsoft Active Directory (AD).
-- [**adsysctl**](https://documentation.ubuntu.com/adsys/en/latest/reference/adsysctl-cli/): A command-line utility for interacting with the Adsys service in Ubuntu.
+- **ADSys**: A tool that allows system administrators to manage Ubuntu machines using Microsoft Active Directory (AD).
+- [**adsysctl**](https://documentation.ubuntu.com/adsys/en/latest/reference/adsysctl-cli/): A command-line utility for interacting with the ADSys service in Ubuntu.
+- **Adwatchd**: A daemon that monitors and enforces compliance with Active Directory policies on Ubuntu systems, helping ensure settings are consistently applied.
 - **apt (Advanced Package Tool)**: A package management system used in Debian-based distributions like Ubuntu to install, update, and remove software.
 - [**AppArmor**](https://documentation.ubuntu.com/server/how-to/security/apparmor/): A Linux security module that enforces mandatory access control policies on programs to limit their capabilities.
 
-- **buffer**: A temporary data storage area used to manage data flow between processes, hardware, or networks.
-
 - [**certmonger**](https://manpages.ubuntu.com/manpages/focal/man8/certmonger.8.html): A service that monitors and renews certificates, commonly used in enterprise environments.
+- **Client**: In the context of ADSys, a client refers to an Ubuntu desktop or server that is managed using Microsoft Active Directory (AD).
 
 - **D-Bus call**: A command or API request used to communicate with system services via D-Bus, a message bus system for interprocess communication.
 - **Daemon**: A background process that runs continuously to provide system services.
-
-- **FISH (Friendly Interactive Shell)**: A user-friendly command-line shell with syntax highlighting, autosuggestions, and other advanced features.
+- [**dconf**](https://documentation.ubuntu.com/adsys/en/latest/explanation/dconf/): A low-level configuration system used by GNOME-based environments to store application and system settings, providing a centralized way to manage configurations.
+- **Domain Controller (DC)**: A server in an Active Directory network that authenticates users, enforces security policies, and manages domain-wide resources.
 - **FQDN (Fully Qualified Domain Name)**: A complete domain name that specifies the exact location of a device within the DNS hierarchy.
 
 - **getcert**: A command-line tool used to request, monitor, and renew security certificates, often used with certmonger.
+- **GNOME**: A popular open-source desktop environment for Linux systems, designed for ease of use and accessibility, providing a modern graphical user interface (GUI).
+- **Group Policies**: A feature in Active Directory that allows administrators to define security settings, software installations, and user preferences across multiple computers in a domain.
 - **GSettings**: A system for storing application and desktop settings in GNOME-based environments.
 - **GVfs (GNOME Virtual File System)**: A user-space virtual filesystem that provides access to remote locations, such as FTP, SMB, and Google Drive.
 
-- **kernel**: The core of an operating system that manages hardware and system resources.
 - **Kerberos**: A network authentication protocol that uses tickets to securely authenticate users and services.
 
 - **LDAP (Lightweight Directory Access Protocol)**: A protocol for accessing and managing directory information, commonly used for authentication.
@@ -43,13 +45,15 @@ not be familiar with.
 
 - **Samba**: A software suite that enables file and print sharing between Linux and Windows systems using the SMB/CIFS protocol.
 - **Security Identifier (SID)**: A unique identifier assigned to users, groups, and other objects in Windows-based systems.
-- **SSSD (System Security Services Daemon)**: A service that manages authentication and authorization with identity providers like Active Directory or LDAP.
+- **Server**: In the context of ADSys, the server refers to a **Windows Server** running Active Directory (AD), which manages and enforces policies for Ubuntu clients.
+- **SSSD (System Security Services Daemon)**: A service that manages authentication and authorization with identity providers like Active Directory or LDAP. [SSSD is used with ADSys](https://documentation.ubuntu.com/adsys/en/stable/explanation/adsys-ref-arch/) for managing authentication and policies.
 - **sudo**: A command that allows users to run programs with elevated (superuser) privileges.
 - **systemd**: A modern system and service manager for Linux, responsible for initializing and managing system processes.
 - **systemd journal**: A logging system that collects and organizes system logs for troubleshooting and auditing.
 
 - **Ubiquity installer**: The default graphical installer for Ubuntu, designed to simplify OS installation.
 
 - **visudo**: A command used to safely edit the sudoers file, which controls user permissions for executing commands with elevated privileges.
+- **Ubuntu Pro**: A premium service from Canonical that provides extended security updates (ESM), compliance tools, and enterprise support for Ubuntu systems.
 
-- **Winbind**: A component of Samba that allows Linux systems to authenticate users against a Windows domain.
+- **Winbind**: A component of Samba that allows Linux systems to authenticate users against a Windows domain. It can be used as an alternative to SSSD.