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.. SPDX-License-Identifier: GPL-3.0-or-later
.. _mod-bogus_log:
DNSSEC validation failure logging
=================================
This module logs a message for each DNSSEC validation failure (on ``notice`` :func:`level <log_level>`).
It is meant to provide hint to operators which queries should be
investigated using diagnostic tools like DNSViz_.
Add following line to your configuration file to enable it:
.. code-block:: lua
modules.load('bogus_log')
Example of error message logged by this module:
.. code-block:: none
[dnssec] validation failure: dnssec-failed.org. DNSKEY
.. _DNSViz: http://dnsviz.net/
List of most frequent queries which fail as DNSSEC bogus can be obtained at run-time:
.. code-block:: lua
> bogus_log.frequent()
{
{
['count'] = 1,
['name'] = 'dnssec-failed.org.',
['type'] = 'DNSKEY',
},
{
['count'] = 13,
['name'] = 'rhybar.cz.',
['type'] = 'DNSKEY',
},
}
Please note that in future this module might be replaced
with some other way to log this information.
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