networking

Networking

What Is AAA in Networking? Authentication, Authorization & Accounting Explained

Enterprise networks may have hundreds of users and administrators accessing routers, switches, firewalls, VPNs, wireless…

Networking

RADIUS vs TACACS+: Network Authentication Explained

Modern networks often have many users, administrators, switches, routers, wireless access points, VPNs, and other devices…

Networking

802.1X Authentication Explained: Supplicant, Authenticator and RADIUS

802.1X is a standard for port-based network access control. It allows a network to authenticate a device or user before…

Networking

What Is Network Access Control (NAC)? Authentication, Device Posture and 802.1X

Network Access Control (NAC) is a security approach that controls which users and devices are allowed to connect to a network…

Networking

MAC Flooding Explained: How Switch Tables Can Be Abused

Ethernet switches use a MAC address table to determine where frames should be forwarded. This allows switches to send traffic…

Networking

VLAN Hopping Attacks Explained: Double Tagging, Switch Spoofing and Prevention

VLAN hopping is a Layer 2 attack technique in which an attacker attempts to send or receive traffic across VLAN boundaries…