SELinux Security Policies and Mechanisms
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Questions and Answers

What is the main purpose of the Access Vector Cache (AVC) in Security Enhanced Linux?

  • To improve performance by caching access control decisions (correct)
  • To store security contexts of persistent entities
  • To map inodes to security contexts
  • To integrate security contexts into policy-independent inodes

    • What is the role of the Object Manager in Security Enhanced Linux?

  • To map PSIDs to SIDs (correct)
  • To implement security policies
  • To cache security contexts
  • To manage persistent entities

    • What is a persistent SID (PSID) in Security Enhanced Linux?

  • A security context of a file system
  • An object manager-local persistent security identifier (correct)
  • A bijective mapping of an inode to a security context
  • A policy-independent security context

    • What is the purpose of the inode/PSID map in Security Enhanced Linux?

    <p>To map inodes to persistent SIDs</p> Signup and view all the answers

    What is the role of the Security Server in Security Enhanced Linux?

    <p>To provide access control decisions</p> Signup and view all the answers

    What is the benefit of using the Access Vector Cache (AVC) in Security Enhanced Linux?

    <p>Improved performance</p> Signup and view all the answers

    What is the relationship between an inode and a PSID in Security Enhanced Linux?

    <p>Bijective mapping</p> Signup and view all the answers

    What is the purpose of the PSID/security context mapping in Security Enhanced Linux?

    <p>To map a PSID to a security context</p> Signup and view all the answers

    Where is the Access Vector Cache (AVC) located in Security Enhanced Linux?

    <p>In the Object Manager</p> Signup and view all the answers

    What is the role of the Policy Manager in Security Enhanced Linux?

    <p>To implement security policies</p> Signup and view all the answers

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