.. Copyright (C) Internet Systems Consortium, Inc. ("ISC")
..
.. SPDX-License-Identifier: MPL-2.0
..
.. This Source Code Form is subject to the terms of the Mozilla Public
.. License, v. 2.0.  If a copy of the MPL was not distributed with this
.. file, you can obtain one at https://mozilla.org/MPL/2.0/.
..
.. See the COPYRIGHT file distributed with this work for additional
.. information regarding copyright ownership.

.. highlight: console

.. _man_named-checkzone:

named-checkzone, named-compilezone - zone file validity checking or converting tool
-----------------------------------------------------------------------------------

Synopsis
~~~~~~~~

:program:`named-checkzone` [**-d**] [**-h**] [**-j**] [**-q**] [**-v**] [**-c** class] [**-f** format] [**-F** format] [**-J** filename] [**-i** mode] [**-k** mode] [**-m** mode] [**-M** mode] [**-n** mode] [**-l** ttl] [**-L** serial] [**-o** filename] [**-r** mode] [**-s** style] [**-S** mode] [**-t** directory] [**-T** mode] [**-w** directory] [**-D**] [**-W** mode] {zonename} {filename}

:program:`named-compilezone` [**-d**] [**-j**] [**-q**] [**-v**] [**-c** class] [**-C** mode] [**-f** format] [**-F** format] [**-J** filename] [**-i** mode] [**-k** mode] [**-m** mode] [**-n** mode] [**-l** ttl] [**-L** serial] [**-r** mode] [**-s** style] [**-t** directory] [**-T** mode] [**-w** directory] [**-D**] [**-W** mode] {**-o** filename} {zonename} {filename}

Description
~~~~~~~~~~~

``named-checkzone`` checks the syntax and integrity of a zone file. It
performs the same checks as ``named`` does when loading a zone. This
makes ``named-checkzone`` useful for checking zone files before
configuring them into a name server.

``named-compilezone`` is similar to ``named-checkzone``, but it always
dumps the zone contents to a specified file in a specified format.
It also applies stricter check levels by default, since the
dump output is used as an actual zone file loaded by ``named``.
When manually specified otherwise, the check levels must at least be as
strict as those specified in the ``named`` configuration file.

Options
~~~~~~~

``-d``
   This option enables debugging.

``-h``
   This option prints the usage summary and exits.

``-q``
   This option sets quiet mode, which only sets an exit code to indicate
   successful or failed completion.

``-v``
   This option prints the version of the ``named-checkzone`` program and exits.

``-j``
   When loading a zone file, this option tells ``named`` to read the journal if it exists. The journal
   file name is assumed to be the zone file name with the
   string ``.jnl`` appended.

``-J filename``
   When loading the zone file, this option tells ``named`` to read the journal from the given file, if
   it exists. This implies ``-j``.

``-c class``
   This option specifies the class of the zone. If not specified, ``IN`` is assumed.

``-i mode``
   This option performs post-load zone integrity checks. Possible modes are
   ``full`` (the default), ``full-sibling``, ``local``,
   ``local-sibling``, and ``none``.

   Mode ``full`` checks that MX records refer to A or AAAA records
   (both in-zone and out-of-zone hostnames). Mode ``local`` only
   checks MX records which refer to in-zone hostnames.

   Mode ``full`` checks that SRV records refer to A or AAAA records
   (both in-zone and out-of-zone hostnames). Mode ``local`` only
   checks SRV records which refer to in-zone hostnames.

   Mode ``full`` checks that delegation NS records refer to A or AAAA
   records (both in-zone and out-of-zone hostnames). It also checks that
   glue address records in the zone match those advertised by the child.
   Mode ``local`` only checks NS records which refer to in-zone
   hostnames or verifies that some required glue exists, i.e., when the
   name server is in a child zone.

   Modes ``full-sibling`` and ``local-sibling`` disable sibling glue
   checks, but are otherwise the same as ``full`` and ``local``,
   respectively.

   Mode ``none`` disables the checks.

``-f format``
   This option specifies the format of the zone file. Possible formats are ``text``
   (the default), ``raw``, and ``map``.

``-F format``
   This option specifies the format of the output file specified. For
   ``named-checkzone``, this does not have any effect unless it dumps
   the zone contents.

   Possible formats are ``text`` (the default), which is the standard
   textual representation of the zone, and ``map``, ``raw``, and
   ``raw=N``, which store the zone in a binary format for rapid
   loading by ``named``. ``raw=N`` specifies the format version of the
   raw zone file: if ``N`` is 0, the raw file can be read by any version of
   ``named``; if N is 1, the file can only be read by release 9.9.0 or
   higher. The default is 1.

``-k mode``
   This option performs ``check-names`` checks with the specified failure mode.
   Possible modes are ``fail`` (the default for ``named-compilezone``),
   ``warn`` (the default for ``named-checkzone``), and ``ignore``.

``-l ttl``
   This option sets a maximum permissible TTL for the input file. Any record with a
   TTL higher than this value causes the zone to be rejected. This
   is similar to using the ``max-zone-ttl`` option in ``named.conf``.

``-L serial``
   When compiling a zone to ``raw`` or ``map`` format, this option sets the "source
   serial" value in the header to the specified serial number. This is
   expected to be used primarily for testing purposes.

``-m mode``
   This option specifies whether MX records should be checked to see if they are
   addresses. Possible modes are ``fail``, ``warn`` (the default), and
   ``ignore``.

``-M mode``
   This option checks whether a MX record refers to a CNAME. Possible modes are
   ``fail``, ``warn`` (the default), and ``ignore``.

``-n mode``
   This option specifies whether NS records should be checked to see if they are
   addresses. Possible modes are ``fail`` (the default for
   ``named-compilezone``), ``warn`` (the default for ``named-checkzone``),
   and ``ignore``.

``-o filename``
   This option writes the zone output to ``filename``. If ``filename`` is ``-``, then
   the zone output is written to standard output. This is mandatory for ``named-compilezone``.

``-r mode``
   This option checks for records that are treated as different by DNSSEC but are
   semantically equal in plain DNS. Possible modes are ``fail``,
   ``warn`` (the default), and ``ignore``.

``-s style``
   This option specifies the style of the dumped zone file. Possible styles are
   ``full`` (the default) and ``relative``. The ``full`` format is most
   suitable for processing automatically by a separate script.
   The relative format is more human-readable and is thus
   suitable for editing by hand. For ``named-checkzone``, this does not
   have any effect unless it dumps the zone contents. It also does not
   have any meaning if the output format is not text.

``-S mode``
   This option checks whether an SRV record refers to a CNAME. Possible modes are
   ``fail``, ``warn`` (the default), and ``ignore``.

``-t directory``
   This option tells ``named`` to chroot to ``directory``, so that ``include`` directives in the
   configuration file are processed as if run by a similarly chrooted
   ``named``.

``-T mode``
   This option checks whether Sender Policy Framework (SPF) records exist and issues a
   warning if an SPF-formatted TXT record is not also present. Possible
   modes are ``warn`` (the default) and ``ignore``.

``-w directory``
   This option instructs ``named`` to chdir to ``directory``, so that relative filenames in master file
   ``$INCLUDE`` directives work. This is similar to the directory clause in
   ``named.conf``.

``-D``
   This option dumps the zone file in canonical format. This is always enabled for
   ``named-compilezone``.

``-W mode``
   This option specifies whether to check for non-terminal wildcards. Non-terminal
   wildcards are almost always the result of a failure to understand the
   wildcard matching algorithm (:rfc:`1034`). Possible modes are ``warn``
   (the default) and ``ignore``.

``zonename``
   This indicates the domain name of the zone being checked.

``filename``
   This is the name of the zone file.

Return Values
~~~~~~~~~~~~~

``named-checkzone`` returns an exit status of 1 if errors were detected
and 0 otherwise.

See Also
~~~~~~~~

:manpage:`named(8)`, :manpage:`named-checkconf(8)`, :rfc:`1035`, BIND 9 Administrator Reference
Manual.
