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NIST National Checklist Program Security Guide

Rules and Groups employed by this XCCDF Profile

  • Use Kerberos Security on All Exports

    Using Kerberos on all exported mounts prevents a malicious client or user from impersonating a system user. To cryptography authenticate users to t...
    Rule Medium Severity
  • Network Time Protocol

    The Network Time Protocol is used to manage the system clock over a network. Computer clocks are not very accurate, so time will drift unpredictabl...
    Group
  • Enable the NTP Daemon

    Run the following command to determine the current status of the <code>chronyd</code> service: <pre>$ sudo systemctl is-active chronyd</pre> If t...
    Rule Medium Severity
  • Specify Additional Remote NTP Servers

    Depending on specific functional requirements of a concrete production environment, the Oracle Linux 7 system can be configured to utilize the serv...
    Rule Medium Severity
  • Specify a Remote NTP Server

    Depending on specific functional requirements of a concrete production environment, the Oracle Linux 7 system can be configured to utilize the serv...
    Rule Medium Severity
  • Obsolete Services

    This section discusses a number of network-visible services which have historically caused problems for system security, and for which disabling or...
    Group
  • Xinetd

    The <code>xinetd</code> service acts as a dedicated listener for some network services (mostly, obsolete ones) and can be used to provide access co...
    Group
  • Uninstall xinetd Package

    The xinetd package can be removed with the following command:
    $ sudo yum erase xinetd
    Rule Low Severity
  • Disable xinetd Service

    The xinetd service can be disabled with the following command:
    $ sudo systemctl mask --now xinetd.service
    Rule Medium Severity
  • NIS

    The Network Information Service (NIS), also known as 'Yellow Pages' (YP), and its successor NIS+ have been made obsolete by Kerberos, LDAP, and oth...
    Group

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