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Understanding and Hardening Linux Containers

ID: 61584d1b-4796-5d0d-87b0-0f13db7f693d

STIX ID: report--61584d1b-4796-5d0d-87b0-0f13db7f693d

Feed Name: NCC Research

Date Published: 2025-12-02

Date Updated: 2026-08-02

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This whitepaper analyzes Linux container technologies (LXC, Docker, rkt), explains kernel features used for container isolation (namespaces, cgroups, capabilities, MAC, and user namespaces), examines attack surfaces and threats to containers, contrasts container defaults, and provides security hardening recommendations to mitigate deployment weaknesses.

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