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Guide to the Secure Configuration of Ubuntu 20.04

Rules, Groups, and Values defined within the XCCDF Benchmark

  • System Settings

    Contains rules that check correct system settings.
    Group
  • Installing and Maintaining Software

    The following sections contain information on security-relevant choices during the initial operating system installation process and the setup of s...
    Group
  • Prefer to use a 64-bit Operating System when supported

    Prefer installation of 64-bit operating systems when the CPU supports it.
    Rule Medium Severity
  • System and Software Integrity

    System and software integrity can be gained by installing antivirus, increasing system encryption strength with FIPS, verifying installed software,...
    Group
  • Software Integrity Checking

    Both the AIDE (Advanced Intrusion Detection Environment) software and the RPM package management system provide mechanisms for verifying the integr...
    Group
  • Verify Integrity with AIDE

    AIDE conducts integrity checks by comparing information about files with previously-gathered information. Ideally, the AIDE database is created imm...
    Group
  • Install AIDE

    The aide package can be installed with the following command:
    $ apt-get install aide
    Rule Medium Severity
  • net.ipv6.conf.all.accept_ra

    Accept all router advertisements?
    Value
  • net.ipv6.conf.all.accept_redirects

    Toggle ICMP Redirect Acceptance
    Value
  • net.ipv6.conf.default.accept_ra

    Accept default router advertisements by default?
    Value

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