🌐 Networking

TFTP (Trivial File Transfer Protocol)

A minimal UDP-based file transfer protocol with no authentication or encryption, used for firmware and configuration transfers on network devices. Attackers abuse it as a second-stage download channel because embedded systems ship with a TFTP client and rarely block outbound use.

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How to Recover a Managed Switch After Its Config and Root Hash Were Stolen

A stolen switch configuration is a map of your network plus every secret it holds. What to rotate, why patching in place is not enough, and how to reflash and rebuild cleanly.

intermediate 6 min read

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