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<refsect1 id='service_discovery'>
<title>SERVICE DISCOVERY</title>
<para>
The service discovery feature allows back ends to automatically
find the appropriate servers to connect to using a special DNS
query. This feature is not supported for backup servers.
</para>
<refsect2 id='configuration'>
<title>Configuration</title>
<para>
If no servers are specified, the back end automatically
uses service discovery to try to find a server. Optionally,
the user may choose to use both fixed server addresses
and service discovery by inserting a special keyword,
<quote>_srv_</quote>, in the list of servers. The order
of preference is maintained. This feature is useful if, for
example, the user prefers to use service discovery whenever
possible, and fall back to a specific server when no servers
can be discovered using DNS.
</para>
</refsect2>
<refsect2 id='domain_name'>
<title>The domain name</title>
<para>
Please refer to the <quote>dns_discovery_domain</quote>
parameter in the
<citerefentry>
<refentrytitle>sssd.conf</refentrytitle>
<manvolnum>5</manvolnum>
</citerefentry>
manual page for more details.
</para>
</refsect2>
<refsect2 id='search_protocol'>
<title>The protocol</title>
<para>
The queries usually specify _tcp as the protocol. Exceptions
are documented in respective option description.
</para>
</refsect2>
<refsect2 id='reference'>
<title>See Also</title>
<para>
For more information on the service discovery mechanism,
refer to RFC 2782.
</para>
</refsect2>
</refsect1>
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