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Guide to the Secure Configuration of Ubuntu 22.04

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Enable Auditing to Start Prior to the Audit Daemon in zIPL

    To ensure all processes can be audited, even those which start prior to the audit daemon, check that all boot entries in <code>/boot/loader/entries...
    Rule Medium Severity
  • Extend Audit Backlog Limit for the Audit Daemon in zIPL

    To improve the kernel capacity to queue all log events, even those which start prior to the audit daemon, check that all boot entries in <code>/boo...
    Rule Medium Severity
  • Protect Random-Number Entropy Pool

    The I/O operations of the Linux kernel block layer due to their inherently unpredictable execution times have been traditionally considered as a re...
    Group
  • Ensure Solid State Drives Do Not Contribute To Random-Number Entropy Pool

    For each solid-state drive on the system, run:
     # echo 0 > /sys/block/DRIVE/queue/add_random
    Rule Medium Severity
  • Kernel Configuration

    Contains rules that check the kernel configuration that was used to build it.
    Group

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