Access Control List Flashcards, test questions and answers
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What is Access Control List?
An Access Control List (ACL) is a set of rules or permissions that determine who can access certain networks, servers, or other types of computer resources. It is a critical part of any security system as it allows administrators to define what users are allowed to do and which areas of the system they can access. By using an ACL, administrators can ensure that only authorized users have access to specific information or resources while denying access to unauthorized individuals.The most common form of ACLs are those used in network security systems, where they are used to control user access to network resources such as files and folders. An ACL typically consists of a list of users or groups who have been granted permission to use the resource, along with what type of access each individual has been given (read-only, read/write, etc.). The administrator can also specify which user accounts should be denied from accessing the resource. This helps prevent malicious behavior by ensuring that unauthorized individuals cannot gain access to sensitive data.In addition to being used in network security systems, ACLs are also commonly implemented in operating systems and applications for managing user accounts and controlling user privileges on a system. For example, an application might use an ACL for allowing certain users read-only permissions while denying all other users write access. Similarly, an operating system may employ an ACL for assigning administrative privileges on the machine such as installing software packages or changing configuration settings.