Linux Server Hardening
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Lesson 5 of 13 · Shrinking the surface

Unneeded services and ports — stop, mask, confine

40 min Debian 12 Versions Debian 12, Ubuntu 24.04, Rocky 9

Objective

Know what listens on the network and what starts with the machine, remove everything that has no business being there, and reduce the rights of the services that remain.

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