Description: The ‘Service User’ refers to the user account under which a service runs in Unix-based operating systems as well as other computing environments. This account is fundamental for process management and system security, as it allows services to run with limited privileges, minimizing the risk of compromising the system in case a service is breached. Service users typically have specific permissions that allow them to access the resources necessary for their operation, but they do not have full access to the system, which helps contain potential damage. Additionally, each service can have its own service user, making it easier to manage and isolate processes. This practice is part of a broader security approach known as the principle of least privilege, which aims to reduce a system’s attack surface. In summary, the ‘Service User’ is a key component in the service architecture of an operating system, ensuring that processes run in a controlled and secure manner.
