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<samba:parameter name="map to guest"
type="enum"
context="G"
advanced="1" developer="1"
xmlns:samba="http://samba.org/common">
<description>
<para>This parameter is only useful in <link linkend="SECURITY">
security</link> modes other than <parameter moreinfo="none">security = share</parameter>
- i.e. <constant>user</constant>, <constant>server</constant>,
and <constant>domain</constant>.</para>
<para>This parameter can take three different values, which tell
<citerefentry><refentrytitle>smbd</refentrytitle>
<manvolnum>8</manvolnum></citerefentry> what to do with user
login requests that don't match a valid UNIX user in some way.</para>
<para>The three settings are :</para>
<itemizedlist>
<listitem>
<para><constant>Never</constant> - Means user login
requests with an invalid password are rejected. This is the
default.</para>
</listitem>
<listitem>
<para><constant>Bad User</constant> - Means user
logins with an invalid password are rejected, unless the username
does not exist, in which case it is treated as a guest login and
mapped into the <link linkend="GUESTACCOUNT"><parameter moreinfo="none">
guest account</parameter></link>.</para>
</listitem>
<listitem>
<para><constant>Bad Password</constant> - Means user logins
with an invalid password are treated as a guest login and mapped
into the <link linkend="GUESTACCOUNT">guest account</link>. Note that
this can cause problems as it means that any user incorrectly typing
their password will be silently logged on as "guest" - and
will not know the reason they cannot access files they think
they should - there will have been no message given to them
that they got their password wrong. Helpdesk services will
<emphasis>hate</emphasis> you if you set the <parameter moreinfo="none">map to
guest</parameter> parameter this way :-).</para>
</listitem>
</itemizedlist>
<para>Note that this parameter is needed to set up "Guest"
share services when using <parameter moreinfo="none">security</parameter> modes other than
share. This is because in these modes the name of the resource being
requested is <emphasis>not</emphasis> sent to the server until after
the server has successfully authenticated the client so the server
cannot make authentication decisions at the correct time (connection
to the share) for "Guest" shares.</para>
<para>For people familiar with the older Samba releases, this
parameter maps to the old compile-time setting of the <constant>
GUEST_SESSSETUP</constant> value in local.h.</para>
</description>
<value type="default">Never</value>
<value type="example">Bad User</value>
</samba:parameter>
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