🌐 Networking

TACACS+

A Cisco-originated protocol for device administration that authenticates engineers logging into network equipment and authorizes each command they run, with per-session accounting. It is typically served by the same policy server as RADIUS, making that server the authority over who can configure the network.

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Why a Compromised Network Access Control Server Outranks a Compromised Firewall

A firewall decides what crosses one boundary. A NAC server decides who may exist on the network and what every switch enforces. Root on it is ownership. How to plan for that day.

intermediate 6 min read

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