.. ischooklib:: libddns_gss_tsig.so
.. _hooks-gss-tsig:

``libddns_gss_tsig.so``: Sign DNS Updates With GSS-TSIG
=======================================================

This hook library allows the :iscman:`kea-dhcp-ddns` server to use
GSS-TSIG to sign DNS updates. For a full discussion of GSS-TSIG in Kea,
please see :ref:`gss-tsig`.

.. note::

    :ischooklib:`libddns_gss_tsig.so` is available only to ISC customers with
    a paid support contract. For more information on subscription options,
    please complete the form at https://www.isc.org/contact.