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Guide to the Secure Configuration of Red Hat Enterprise Linux CoreOS 4

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Disable Avahi Publishing

    To prevent Avahi from publishing its records, edit <code>/etc/avahi/avahi-daemon.conf</code> and ensure the following line appears in the <code>[publish]</code> section: <pre>disable-publishing=yes...
    Rule Low Severity
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  • Cron and At Daemons

    The cron and at services are used to allow commands to be executed at a later time. The cron service is required by almost all systems to perform necessary maintenance tasks, while at may or may no...
    Group
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  • Install the cron service

    The Cron service should be installed.
    Rule Medium Severity
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  • Deprecated services

    Some deprecated software services impact the overall system security due to their behavior (leak of confidentiality in network exchange, usage as uncontrolled communication channel, risk associated...
    Group
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  • Uninstall the inet-based telnet server

    The inet-based telnet daemon should be uninstalled.
    Rule High Severity
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  • Uninstall the nis package

    The support for Yellowpages should not be installed unless it is required.
    Rule Low Severity
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  • Uninstall the ntpdate package

    ntpdate is a historical ntp synchronization client for unixes. It sould be uninstalled.
    Rule Low Severity
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  • Uninstall the ssl compliant telnet server

    The telnet daemon, even with ssl support, should be uninstalled.
    Rule High Severity
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  • Uninstall the telnet server

    The telnet daemon should be uninstalled.
    Rule High Severity
    Show

  • DHCP

    The Dynamic Host Configuration Protocol (DHCP) allows systems to request and obtain an IP address and other configuration parameters from a server. <br> <br> This guide recommends configuring...
    Group
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