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52 lines
1.8 KiB
ReStructuredText
52 lines
1.8 KiB
ReStructuredText
Additional Controls
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===================
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Although the |benchmark_name| documentation guide contains a
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comprehensive set of security configurations, some contributors want to add
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extra security configurations to the role. The *contrib* portion of the
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role is designed to implement those configurations as an optional set of tasks.
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In general, *contrib* controls are limited to items to meet backwards compatibility
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with the `Openstack Ansible Hardening`_ project. It is recommended that new *contrib*
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items (things that don't address specific items) should be addressed in a separate
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Ansible role.
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.. _Openstack Ansible Hardening: https://github.com/openstack/ansible-hardening
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**BELOW IS NOT YET IMPLEMENTED IN THIS ROLE**
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*The below configurations and variables are not yet implemented. This page and
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message are being kept until it is implemented.*
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The *contrib* hardening configurations are disabled by default, but they can
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be enabled by setting the following Ansible variable:
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.. code-block:: yaml
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rhel7stig_security_contrib_enabled: yes
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The individual tasks are controlled by Ansible variables in
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``defaults/main.yml`` that are defined under the
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``rhel7stig_security_contrib:`` variable.
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Kernel
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------
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Disable IPv6
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~~~~~~~~~~~~~~~~~~~~~~
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Some systems do not require IPv6 connectivity and the presence of link local
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IPv6 addresses can present an additional attack surface for lateral movement.
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Deployers can set the following variable to disable IPv6 on all network
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interfaces:
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.. code-block:: yaml
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rhel7_stig_security_contrib:
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disable_ipv6: yes
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.. warning::
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Deployers should test this change in a test environment before applying it
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in a production deployment. Applying this change to a production system
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that relies on IPv6 connectivity will cause unexpected downtime.
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