Access Control List (ACL) 📜🔐

Overview 🌟

An Access Control List (ACL) is a method for defining and managing permissions or authorizations for various objects. ACLs are utilized both in file systems and network security to control access to resources.

File System ACLs 💻

• Definition:

  • ACLs are tables or databases listing access rights for individuals or groups regarding different objects like folders, files, or programs.

• Components:

  • Access Control Entries (ACEs): Individual entries in an ACL specifying permissions such as read, write, or execute for each object.

• Purpose:

  • File Permissions: Control user or group access to files and directories, ensuring that only authorized users can perform specific actions.

Network ACLs 🌐

• Definition:

  • ACLs in network security apply access controls to network devices such as routers, switches, and firewalls.

• Components:

  • Incoming Traffic: Rules to manage and restrict incoming network traffic.

  • Outgoing Traffic: Rules to control and limit outbound traffic.

• Purpose:

  • Restrict External Access: Limit external access to systems and services within the network.

  • Enforce Policies: Ensure compliance with organizational policies and prevent unauthorized data transfers.

Key Takeaways 📌

• File System ACLs: Manage file and folder access permissions through ACEs.

• Network ACLs: Regulate network traffic and control access to services within the network.

ACLs are essential for maintaining security and ensuring that only authorized individuals or systems have access to specific resources.