2d44b2b36d
The new sphinx version introduces some changes that break build: * Warns if code cannot be parsed for highlighting. Fix the code so that it can be parsed, this includes uncommenting "..." lines. Note that not every config file is an ini-file. Also, the parser seems to have bugs and cannot parse all files. Fix mysql ini file and enable the parameter, see http://dev.mysql.com/doc/refman/5.7/en/innodb-parameters.html#sysvar_innodb_file_per_table * :option: works only with declared options, replace useage with simple ``. This change only handles a few files, more to come later. Change-Id: I7c7335e514581622dd562ee355f62d6ae1beaa18
125 lines
2.6 KiB
ReStructuredText
125 lines
2.6 KiB
ReStructuredText
.. _environment-ntp-controller:
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Controller node
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~~~~~~~~~~~~~~~
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Perform these steps on the controller node.
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Install and configure components
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--------------------------------
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1. Install the packages:
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.. only:: ubuntu or debian
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.. code-block:: console
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# apt install chrony
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.. end
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.. endonly
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.. only:: rdo
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.. code-block:: console
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# yum install chrony
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.. end
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.. endonly
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.. only:: obs
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.. code-block:: console
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# zypper install chrony
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.. end
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.. endonly
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.. only:: ubuntu or debian
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2. Edit the ``/etc/chrony/chrony.conf`` file and add, change, or remove
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these keys as necessary for your environment:
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.. code-block:: shell
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server NTP_SERVER iburst
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.. end
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Replace ``NTP_SERVER`` with the hostname or IP address of a suitable more
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accurate (lower stratum) NTP server. The configuration supports multiple
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``server`` keys.
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.. note::
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By default, the controller node synchronizes the time via a pool of
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public servers. However, you can optionally configure alternative
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servers such as those provided by your organization.
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3. To enable other nodes to connect to the chrony daemon on the controller node,
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add this key to the ``/etc/chrony/chrony.conf`` file:
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.. code-block:: shell
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allow 10.0.0.0/24
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.. end
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4. Restart the NTP service:
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.. code-block:: console
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# service chrony restart
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.. end
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.. endonly
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.. only:: rdo or obs
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2. Edit the ``/etc/chrony.conf`` file and add, change, or remove these
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keys as necessary for your environment:
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.. code-block:: shell
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server NTP_SERVER iburst
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.. end
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Replace ``NTP_SERVER`` with the hostname or IP address of a suitable more
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accurate (lower stratum) NTP server. The configuration supports multiple
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``server`` keys.
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.. note::
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By default, the controller node synchronizes the time via a pool of
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public servers. However, you can optionally configure alternative
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servers such as those provided by your organization.
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3. To enable other nodes to connect to the chrony daemon on the controller node,
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add this key to the ``/etc/chrony.conf`` file:
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.. code-block:: shell
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allow 10.0.0.0/24
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.. end
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If necessary, replace ``10.0.0.0/24`` with a description of your subnet.
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4. Start the NTP service and configure it to start when the system boots:
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.. code-block:: console
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# systemctl enable chronyd.service
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# systemctl start chronyd.service
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.. end
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.. endonly
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