In the vast landscape of operating systems, Linux stands as a bastion of flexibility and security. Central to its robust security model is the meticulous management of user accounts and permissions. This article delves into the intricacies of managing user accounts and permissions in Linux, illuminating the pathway towards securing your system against unauthorized access and potential misuse.
Understanding Users and Groups
At the heart of Linux’s security model are users and groups. A user is an account that has access to the system, potentially with varying levels of permissions. Groups are collections of users, facilitating the administration of common permissions among multiple users.
- User and Group Identifiers (UID & GID): Each user and group in a Linux system is uniquely identified by a user ID (UID) and group ID (GID) respectively. These identifiers are crucial for the system to manage permissions and resources.
Creating and Managing User Accounts
Creating, modifying, and deleting user accounts are routine tasks for system administrators.
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Author: George Whittaker