NAS (Network Access Server)

A Network Access Server (NAS) is a device that acts as a gateway, allowing users to connect securely to a network or internet. When you log in or authenticate, the NAS verifies your credentials and grants access to the network resources. It manages multiple user connections simultaneously, ensuring security and proper usage. Commonly used in organizations like internet service providers, corporate networks, or Wi-Fi hotspots, the NAS helps control who can connect, what they can access, and maintains overall network security and performance.