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12   Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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14   This Source Code Form is subject to the terms of the Mozilla Public
15   License, v. 2.0. If a copy of the MPL was not distributed with this
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22.. highlight: console
23
24.. _man_named-journalprint:
25
26named-journalprint - print zone journal in human-readable form
27--------------------------------------------------------------
28
29Synopsis
30~~~~~~~~
31
32:program:`named-journalprint` [-c serial] [**-dux**] {journal}
33
34Description
35~~~~~~~~~~~
36
37``named-journalprint`` scans the contents of a zone journal file,
38printing it in a human-readable form, or, optionally, converting it
39to a different journal file format.
40
41Journal files are automatically created by ``named`` when changes are
42made to dynamic zones (e.g., by ``nsupdate``). They record each addition
43or deletion of a resource record, in binary format, allowing the changes
44to be re-applied to the zone when the server is restarted after a
45shutdown or crash. By default, the name of the journal file is formed by
46appending the extension ``.jnl`` to the name of the corresponding zone
47file.
48
49``named-journalprint`` converts the contents of a given journal file
50into a human-readable text format. Each line begins with ``add`` or ``del``,
51to indicate whether the record was added or deleted, and continues with
52the resource record in master-file format.
53
54The ``-c`` (compact) option provides a mechanism to reduce the size of
55a journal by removing (most/all) transactions prior to the specified
56serial number. Note: this option *must not* be used while ``named`` is
57running, and can cause data loss if the zone file has not been updated
58to contain the data being removed from the journal. Use with extreme caution.
59
60The ``-x`` option causes additional data about the journal file to be
61printed at the beginning of the output and before each group of changes.
62
63The ``-u`` (upgrade) and ``-d`` (downgrade) options recreate the journal
64file with a modified format version.  The existing journal file is
65replaced.  ``-d`` writes out the journal in the format used by
66versions of BIND up to 9.16.11; ``-u`` writes it out in the format used
67by versions since 9.16.13. (9.16.12 is omitted due to a journal-formatting
68bug in that release.) Note that these options *must not* be used while
69``named`` is running.
70
71See Also
72~~~~~~~~
73
74:manpage:`named(8)`, :manpage:`nsupdate(1)`, BIND 9 Administrator Reference Manual.
75