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[#2142] Remove references to outdated Kea versions
This commit is contained in:
Andrei Pavel
@@ -2064,7 +2064,7 @@ Such an option can be defined by putting the following entry in the configuratio
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...
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}
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The ``"false"`` value of the ``array`` parameter determines that the
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The ``false`` value of the ``array`` parameter determines that the
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option does NOT comprise an array of ``uint32`` values but is, instead, a
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single value. Two other parameters have been left blank:
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``record-types`` and ``encapsulate``. The former specifies the
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@@ -2078,7 +2078,7 @@ configuration statement only defines the format of an option and does
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not set its value(s).
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The ``name``, ``code``, and ``type`` parameters are required; all others
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are optional. The ``array`` default value is ``"false"``. The
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are optional. The ``array`` default value is ``false``. The
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``record-types`` and ``encapsulate`` default values are blank (``""``).
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The default ``space`` is ``dhcp4``.
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@@ -2528,7 +2528,7 @@ By default, Kea sends back
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only those options that are requested by a client, unless there are
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protocol rules that tell the DHCP server to always send an option. This
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approach works nicely in most cases and avoids problems with clients
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refusing responses with options they don't understand. However,
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refusing responses with options they do not understand. However,
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the situation with vendor options is more complex, as they
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are not requested the same way as other options, are
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not well-documented in official RFCs, or vary by vendor.
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@@ -6578,7 +6578,7 @@ The DHCPv4 server supports the following statistics:
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This section describes DHCPv4-specific statistics. For a general
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overview and usage of statistics, see :ref:`stats`.
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The DHCPv4 server provides two global parameters to control default sample
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The DHCPv4 server provides two global parameters to control the default sample
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limits of statistics:
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- ``statistic-default-sample-count`` - determines the default maximum
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@@ -1846,7 +1846,7 @@ in the configuration file:
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...
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}
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The ``"false"`` value of the ``array`` parameter determines that the option
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The ``false`` value of the ``array`` parameter determines that the option
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does NOT comprise an array of ``uint32`` values but is, instead, a single
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value. Two other parameters have been left blank: ``record-types`` and
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``encapsulate``. The former specifies the comma-separated list of option
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@@ -1860,7 +1860,7 @@ configuration statement only defines the format of an option and does
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not set its value(s).
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The ``name``, ``code``, and ``type`` parameters are required; all
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others are optional. The ``array`` default value is ``"false"``. The
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others are optional. The ``array`` default value is ``false``. The
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``record-types`` and ``encapsulate`` default values are blank (``""``).
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The default ``space`` is ``dhcp6``.
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@@ -2648,7 +2648,7 @@ shared network, subnet, or pool. There are two parameters which are used
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to limit the scope of the class by instructing the server to evaluate
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test expressions when required.
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The first one is the per-class ``only-if-required`` flag, which is "false"
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The first one is the per-class ``only-if-required`` flag, which is ``false``
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by default. When it is set to ``true``, the test expression of the class
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is not evaluated at the reception of the incoming packet but later, and
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only if the class evaluation is required.
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@@ -2842,13 +2842,13 @@ The second parameter added in Kea 1.9.1 is ``ddns-use-conflict-resolution``.
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The value of this parameter is passed by ``kea-dhcp6`` to D2 with each DNS update
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request. When ``true`` (the default value), D2 employs conflict resolution,
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as described in `RFC 4703 <https://tools.ietf.org/html/rfc4703>`__, when
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attempting to fulfill the update request. When "false", D2 simply attempts
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attempting to fulfill the update request. When ``false``, D2 simply attempts
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to update the DNS entries per the request, regardless of whether they
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conflict with existing entries owned by other DHCPv6 clients.
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.. note::
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Setting ``ddns-use-conflict-resolution`` to "false" disables the overwrite
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Setting ``ddns-use-conflict-resolution`` to ``false`` disables the overwrite
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safeguards that the rules of conflict resolution (from
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`RFC 4703 <https://tools.ietf.org/html/rfc4703>`__) are intended to
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prevent. This means that existing entries for an FQDN or an
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@@ -2897,7 +2897,7 @@ control this communication:
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- ``enable-updates`` - Enables connectivity to ``kea-dhcp-ddns`` such that DDNS
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updates can be constructed and sent. It must be ``true`` for NCRs to be generated and sent to D2.
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It defaults to "false".
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It defaults to ``false``.
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- ``server-ip`` - This is the IP address on which D2 listens for requests. The
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default is the local loopback interface at address 127.0.0.1.
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@@ -3099,11 +3099,11 @@ parameter, which provides the following modes of behavior:
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.. note::
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In early versions of Kea, this parameter was a boolean and
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permitted only values of ``true`` and "false".
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permitted only values of ``true`` and ``false``.
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Boolean values have been deprecated and are no longer accepted.
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Administrators currently using booleans must replace them with the
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desired mode name. A value of ``true`` maps to ``when-present``, while
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"false" maps to ``never``.
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``false`` maps to ``never``.
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For example, to instruct ``kea-dhcp6`` to always generate the FQDN for a
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client, set the parameter ``ddns-replace-client-name`` to ``always`` as
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@@ -3408,7 +3408,7 @@ additional information must be stored with each lease. Because the amount
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of information stored for each lease has ramifications in terms of
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performance and system resource consumption, storage of this additional
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information is configurable through the ``store-extended-info`` parameter.
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It defaults to "false" and may be set at the global, shared-network, and
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It defaults to ``false`` and may be set at the global, shared-network, and
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subnet levels.
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::
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@@ -3464,7 +3464,7 @@ threads. These settings can be found under the ``multi-threading`` structure and
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represented by:
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- ``enable-multi-threading`` - use multiple threads to process packets in
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parallel. The default is "false".
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parallel. The default is ``false``.
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- ``thread-pool-size`` - specify the number of threads to process packets in
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parallel. It may be set to 0 (auto-detect), or any positive number explicitly sets
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@@ -4007,7 +4007,7 @@ reserved class has been also assigned.
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The classes specified in non-global host reservations
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are assigned to the processed packet after all classes with the
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``only-if-required`` parameter set to "false" have been evaluated.
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``only-if-required`` parameter set to ``false`` have been evaluated.
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This means that these classes must not depend on the
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statically assigned classes from the host reservations. If
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such a dependency is needed, the ``only-if-required`` must
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@@ -4653,7 +4653,7 @@ enabled with the ``ip-reservations-unique`` global parameter.
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``ip-reservations-unique`` is a boolean parameter that defaults to
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``true``, which forbids the specification of more than one reservation
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for the same lease in a given subnet. Setting this parameter to "false"
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for the same lease in a given subnet. Setting this parameter to ``false``
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allows such reservations to be created both in the Kea configuration
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file and in the host database backend, via the ``host-cmds`` hook library.
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@@ -4661,7 +4661,7 @@ This setting is currently supported by the most popular host database
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backends, i.e. MySQL and PostgreSQL. It is not supported for Cassandra,
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Host Cache (see :ref:`hooks-host-cache`), or the RADIUS backend
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(see :ref:`hooks-radius`). An attempt to set ``ip-reservations-unique``
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to "false" when any of these three backends is in use yields a
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to ``false`` when any of these three backends is in use yields a
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configuration error.
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.. note::
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@@ -4722,7 +4722,7 @@ for the same IP address or delegated prefix.
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Currently the Kea server does not verify whether multiple reservations for
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the same IP address and/or delegated prefix exist in
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MySQL and/or PostgreSQL) host databases when ``ip-reservations-unique``
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is updated from ``true`` to "false". This may cause issues with
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is updated from ``true`` to ``false``. This may cause issues with
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lease allocations. The administrator must ensure that there is at
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most one reservation for each IP address and/or delegated prefix
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within each subnet, prior to the configuration update.
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@@ -6503,7 +6503,7 @@ The DHCPv6 server supports the following statistics:
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This section describes DHCPv6-specific statistics. For a general
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overview and usage of statistics, see :ref:`stats`.
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The DHCPv6 server provides two global parameters to control default sample
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The DHCPv6 server provides two global parameters to control the default sample
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limits of statistics:
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- ``statistic-default-sample-count`` - determines the default maximum
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@@ -108,11 +108,11 @@ There is no limit on the number of backup servers in the HA setup;
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however, the presence of backup servers may increase the latency
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of DHCP responses, because not only do active servers send lease updates
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to each other, but also to the backup servers. The active
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servers don't expect acknowledgments from the backup servers
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servers do not expect acknowledgments from the backup servers
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before responding to the DHCP clients, so the overhead of sending
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lease updates to the backup servers is minimized.
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The last supported configuration, ``passive-backup``, there is only one active
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In the last supported configuration, ``passive-backup``, there is only one active
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server and typically one or more backup servers. A passive-backup
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configuration with no backup servers is also accepted, but it is no
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different than running a single server with no HA function at all.
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@@ -179,7 +179,7 @@ clocks and restart the servers.
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.. note::
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It is possible to restart the servers one at a time, in no particular oder.
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It is possible to restart the servers one at a time, in no particular order.
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The clocks must be in sync before restarting the servers.
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.. note::
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@@ -1600,11 +1600,13 @@ and four threads for the client.
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.. note::
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It is essential to configure the ports correctly. One common mistake
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is to configure CA to listen on port 8000 and also configure dedicated listeners on port
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1. In such a configuration, the DHCP server will fail to bind sockets, but the communication
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will still work via CA, albeit slowly. Make sure your dedicated listeners use a different port
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(8001 is a suggested alternative). If you misconfigure ports or use the ports used by CA, the
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performance bottlenecks caused by the single-threaded nature of CA and the sequential nature of
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is to configure CA to listen on port 8000 and also configure dedicated listeners on port 8000.
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In such a configuration, the communication will still work over CA,
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but it will be slow and the DHCP server will fail to bind sockets.
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Administrators should ensure that dedicated listeners use a different
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port (8001 is a suggested alternative); if ports are misconfigured
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or the ports dedicated to CA are used, the performance bottlenecks
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caused by the single-threaded nature of CA and the sequential nature of
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the UNIX socket that connects CA to DHCP servers will nullify any performance gains offered by HA+MT.
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.. _ha-parked-packet-limit:
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@@ -51,7 +51,7 @@ on CentOS 7.0. Other systems may differ slightly.
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.. note::
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ISC provides Kea software and hooks in convenient-to-use
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native Alpine, deb and RPM packages. This includes the RADIUS hook and the required patched version
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native Alpine, deb, and RPM packages. This includes the RADIUS hook and the required patched version
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of the FreeRADIUS client library. The software compilation for RADIUS is complicated; unless
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there are specific reasons to compile it, administrators should seriously consider using
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native packages.
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@@ -1846,21 +1846,21 @@ contract.
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Currently, the following commands are supported:
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- ``reservation-add``, which adds a new host reservation
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- ``reservation-add``, which adds a new host reservation.
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- ``reservation-get``, which returns an existing reservation if specified
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criteria are matched
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criteria are matched.
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- ``reservation-get-all``, which returns all reservations in a specified subnet
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- ``reservation-get-all``, which returns all reservations in a specified subnet.
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- ``reservation-get-page``, a variant of ``reservation-get-all`` that returns
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reservations by pages, either all or in a specified subnet
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reservations by pages, either all or in a specified subnet.
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- ``reservation-get-by-hostname``, which returns all reservations with a
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specified hostname and optionally in a subnet
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specified hostname and optionally in a subnet.
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- ``reservation-get-by-id``, which returns all reservations with a specified
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identifier since Kea version 1.9.0
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identifier (since Kea version 1.9.0).
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- ``reservation-del``, which attempts to delete a reservation matching specified
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criteria.
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@@ -51,7 +51,7 @@ Quick Start Guide Using tarball
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Quick Start Guide Using Native Packages
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=======================================
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ISC provides native Alpine, deb and RPM packages, which make Kea installation
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ISC provides native Alpine, deb, and RPM packages, which make Kea installation
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much easier. Unless specific compilation options are desired, it is usually
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easier to install Kea using native packages.
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