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Guide to the Secure Configuration of openSUSE

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Ensure All-Squashing Disabled On All Exports

    The <code>all_squash</code> maps all uids and gids to an anonymous user. This should be disabled by removing any instances of the <code>all_squash</code> option from the file <code>/etc/exports</co...
    Rule Low Severity
  • Vendor Approved Time Servers

    The list of vendor-approved time servers
    Value
  • Install the ntp service

    The ntpd service should be installed.
    Rule High Severity
  • The Chronyd service is enabled

    chrony is a daemon which implements the Network Time Protocol (NTP) is designed to synchronize system clocks across a variety of systems and use a source that is highly accurate. More information o...
    Rule Medium Severity
  • Ensure Chrony is only configured with the server directive

    Check that Chrony only has time sources configured with the server directive.
    Rule Medium Severity
  • SSH Max authentication attempts

    Specify the maximum number of authentication attempts per connection.
    Value
  • Rlogin, Rsh, and Rexec

    The Berkeley r-commands are legacy services which allow cleartext remote access and have an insecure trust model.
    Group
  • Remove Rsh Trust Files

    The files <code>/etc/hosts.equiv</code> and <code>~/.rhosts</code> (in each user's home directory) list remote hosts and users that are trusted by the local system when using the rshd daemon. To re...
    Rule High Severity
  • Configure OpenSSH Server if Necessary

    If the system needs to act as an SSH server, then certain changes should be made to the OpenSSH daemon configuration file <code>/etc/ssh/sshd_config</code>. The following recommendations can be app...
    Group
  • SSH RekeyLimit - size

    Specify the size component of the rekey limit.
    Value

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