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Guide to the Secure Configuration of SUSE Linux Enterprise 15

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Ensure gnutls-utils is installed

    The gnutls-utils package can be installed with the following command:
    $ sudo zypper install gnutls-utils
    Rule Medium Severity
  • Ensure nss-tools is installed

    The nss-tools package can be installed with the following command:
    $ sudo zypper install nss-tools
    Rule Medium Severity
  • Updating Software

    The <code>zypper</code> command line tool is used to install and update software packages. The system also provides a graphical software update tool in the <b>System</b> menu, in the <b>Administrat...
    Group
  • Install dnf-automatic Package

    The dnf-automatic package can be installed with the following command:
    $ sudo zypper install dnf-automatic
    Rule Medium Severity
  • Ensure zypper Removes Previous Package Versions

    <code>zypper</code> should be configured to remove previous software components after new versions have been installed. To configure <code>zypper</code> to remove the previous software components ...
    Rule Low Severity
  • Configure dnf-automatic to Install Available Updates Automatically

    To ensure that the packages comprising the available updates will be automatically installed by <code>dnf-automatic</code>, set <code>apply_updates</code> to <code>yes</code> under <code>[commands]...
    Rule Medium Severity
  • Configure dnf-automatic to Install Only Security Updates

    To configure <code>dnf-automatic</code> to install only security updates automatically, set <code>upgrade_type</code> to <code>security</code> under <code>[commands]</code> section in <code>/etc/dn...
    Rule Low Severity
  • Ensure gpgcheck Enabled In Main zypper Configuration

    The <code>gpgcheck</code> option controls whether RPM packages' signatures are always checked prior to installation. To configure zypper to check package signatures before installing them, ensure t...
    Rule High Severity
  • Ensure gpgcheck Enabled for All zypper Package Repositories

    To ensure signature checking is not disabled for any repos, remove any lines from files in /etc/yum.repos.d of the form:
    gpgcheck=0
    Rule High Severity
  • Ensure package manager repositories are configured

    Systems need to have package manager repositories configured to ensure they receive the latest patches and updates.
    Rule Medium Severity

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