December 2016
Intermediate to advanced
300 pages
6h 36m
English
Content preview from SELinux System Administration - Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Domain transition analysis
An important analytical approach when dealing with SELinux policies is to perform a domain transition analysis. Domains are bounded by the access controls that are in place for a given domain, but users (sessions) can transition to other domains by executing the right set of applications.
Analyzing if, and how, a transition can occur between two domains allows administrators to validate the secure state of the policy. Given the mandatory nature of SELinux, adversaries will find it difficult to be able to execute target applications if a domain transition analysis shows that the source domain cannot execute said application, either directly or indirectly.
Use domain transition analysis to confirm whether a domain is correctly ...
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