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Networking and Infrastructure

Access Control List (ACL)

A list of permissions that defines which users or system processes are granted access to specific objects, directories, or network resources.

An Access Control List (ACL) is a table that tells a computer operating system, network device, or application which access rights each user or group has for a given resource. ACLs can be applied to files, directories, network interfaces, and more.

ACLs define permissions at a granular level: who can read, write, execute, or delete a resource. In network security, ACLs on routers and firewalls control which traffic is allowed or denied based on source/destination IP, port, and protocol.

For teams managing shared credentials, ACLs translate to role-based access within a password manager, ensuring that marketing teams access marketing credentials, developers access development tools, and only administrators have full vault access.

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