default groups

Understanding System Default Users and Groups in Linux: Focus on nobody and www-data Linux operating systems are renowned for their robust user management capabilities, ensuring security and efficient resource allocation among multiple users. Among these, certain default system users and groups, such as nobody and www-data, play pivotal roles in system operations and security. Understanding the purposes and responsibilities of these entities can help you manage your system more effectively. When you install a Linux system, it creates several default users and groups that serve various operational requirements.