Networking

SD-WAN (Software-Defined WAN)

A networking approach that manages wide-area connectivity in software, centrally defining routing and security policy and pushing it to edge devices from a controller. The central manager administers many downstream devices at once, which makes it a high-value target whose compromise can affect an entire fabric.

Deep dive

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How to Find Which of Your Admin Consoles Are Reachable From the Internet

A repeatable process for mapping every management UI and control-plane API an outsider can touch, confirming what each is, and closing the gap behind a choke point before the next advisory lands.

intermediate 4 min read

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