Skip to content
ATO Pathways
  Log In

Guide to the Secure Configuration of Oracle Linux 7

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Enable the NTP Daemon

    The ntpd service can be enabled with the following command: 
    $ sudo systemctl enable ntpd.service
    Rule Medium Severity
    Show

  • SSH Max Keep Alive Count

    Specify the maximum number of idle message counts before session is terminated.
    Value
    Show

  • Remove NIS Client

    The Network Information Service (NIS), formerly known as Yellow Pages, is a client-server directory service protocol used to distribute system conf...
    Rule Unknown Severity
    Show

  • Configure Time Service Maxpoll Interval

    The <code>maxpoll</code> should be configured to <xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_time_service_set_maxpoll" use="legacy...
    Rule Medium Severity
    Show

  • 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
    Show

  • 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
    Show

  • Ensure Chrony is only configured with the server directive

    Check that Chrony only has time sources configured with the server directive.
    Rule Medium Severity
    Show

  • A remote time server for Chrony is configured

    <code>Chrony</code> is a daemon which implements the Network Time Protocol (NTP). It is designed to synchronize system clocks across a variety of s...
    Rule Medium Severity
    Show

  • Specify Additional Remote NTP Servers

    Additional NTP servers can be specified for time synchronization in the file <code>/etc/ntp.conf</code>. To do so, add additional lines of the fol...
    Rule Unknown Severity
    Show

  • Specify a Remote NTP Server

    To specify a remote NTP server for time synchronization, edit the file <code>/etc/ntp.conf</code>. Add or correct the following lines, substituting...
    Rule Medium Severity
    Show

  • Chat/Messaging Services

    The talk software makes it possible for users to send and receive messages across systems through a terminal session.
    Group
    Show

  • 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
    Show

  • Ensure rsyncd service is disabled

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

  • 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
    Show

  • Uninstall xinetd Package

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

  • Disable xinetd Service

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

  • Ensure /etc/hosts.deny is configured

    The file <code>/etc/hosts.deny</code> together with <code>/etc/hosts.allow</code> provides a simple access control mechanism for network services s...
    Rule Medium Severity
    Show

  • Verify Group Ownership of /etc/hosts.allow

    To properly set the group owner of /etc/hosts.allow, run the command: 
    $ sudo chgrp root /etc/hosts.allow
    Rule Medium Severity
    Show

  • Verify Group Ownership of /etc/hosts.deny

    To properly set the group owner of /etc/hosts.deny, run the command: 
    $ sudo chgrp root /etc/hosts.deny
    Rule Medium Severity
    Show

  • Verify Ownership of /etc/hosts.allow

    To properly set the owner of /etc/hosts.allow, run the command: 
    $ sudo chown root /etc/hosts.allow
    Rule Medium Severity
    Show

Node 2

siemur/test-space

The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.

Capacity
Modules