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<samba:parameter name= "idmap backend"
context="G"
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type="string"
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advanced="1" developer="1" hide="1"
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xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
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<description >
<para >
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The idmap backend provides a plugin interface for Winbind to use
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varying backends to store SID/uid/gid mapping tables.
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</para>
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<para >
This option specifies the default backend that is used when no special
configuration set by <smbconfoption name= "idmap config" /> matches the
specific request.
</para>
<para >
This default backend also specifies the place where winbind-generated
idmap entries will be stored. So it is highly recommended that you
specify a writable backend like <citerefentry >
<refentrytitle > idmap_tdb</refentrytitle> <manvolnum > 8</manvolnum>
</citerefentry> or <citerefentry >
<refentrytitle > idmap_ldap</refentrytitle> <manvolnum > 8</manvolnum>
</citerefentry> as the idmap backend. The <citerefentry >
<refentrytitle > idmap_rid</refentrytitle> <manvolnum > 8</manvolnum>
</citerefentry> and <citerefentry >
<refentrytitle > idmap_ad</refentrytitle> <manvolnum > 8</manvolnum>
</citerefentry> backends are not writable and thus will generate
unexpected results if set as idmap backend.
</para>
<para >
To use the rid and ad backends, please specify them via the
<smbconfoption name= "idmap config" /> parameter, possibly also for the
domain your machine is member of, specified by <smbconfoption
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name="workgroup"/>.
</para>
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<para > Examples of SID/uid/gid backends include tdb (<citerefentry >
<refentrytitle > idmap_tdb</refentrytitle> <manvolnum > 8</manvolnum> </citerefentry> ),
ldap (<citerefentry > <refentrytitle > idmap_ldap</refentrytitle>
<manvolnum > 8</manvolnum> </citerefentry> ), rid (<citerefentry >
<refentrytitle > idmap_rid</refentrytitle> <manvolnum > 8</manvolnum> </citerefentry> ),
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and ad (<citerefentry > <refentrytitle > idmap_ad</refentrytitle>
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<manvolnum > 8</manvolnum> </citerefentry> ).
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</para>
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</description>
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<value type= "default" > tdb</value>
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</samba:parameter>