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Guide to the Secure Configuration of SUSE Linux Enterprise 12

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Uninstall DHCP Client Package

    If the system does not need to act as a DHCP client, the dhcp-client package can be uninstalled. The <code>dhcp-client</code> package can be remove...
    Rule Medium Severity
  • Disable DHCP Server

    The DHCP server <code>dhcpd</code> is not installed or activated by default. If the software was installed and activated, but the system does not n...
    Group
  • Uninstall DHCP Server Package

    If the system does not need to act as a DHCP server, the dhcp package can be uninstalled. The <code>dhcp-server</code> package can be removed with...
    Rule Medium Severity
  • Disable DHCP Service

    The <code>dhcpd</code> service should be disabled on any system that does not need to act as a DHCP server. The <code>dhcpd</code> service can be ...
    Rule Medium Severity
  • DNS Server

    Most organizations have an operational need to run at least one nameserver. However, there are many common attacks involving DNS server software, a...
    Group
  • Disable DNS Server

    DNS software should be disabled on any systems which does not need to be a nameserver. Note that the BIND DNS server software is not installed on S...
    Group
  • Uninstall bind Package

    The <code>named</code> service is provided by the <code>bind</code> package. The <code>bind</code> package can be removed with the following comman...
    Rule Low Severity
  • Disable named Service

    The named service can be disabled with the following command:
    $ sudo systemctl mask --now named.service
    Rule Medium Severity
  • Isolate DNS from Other Services

    This section discusses mechanisms for preventing the DNS server from interfering with other services. This is done both to protect the remainder of...
    Group
  • Run DNS Software in a chroot Jail

    Install the <code>bind-chroot</code> package: <pre>$ sudo yum install bind-chroot</pre> Place a valid named.conf file inside the chroot jail: <pre>...
    Group

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