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-<samba:parameter xmlns:samba="http://samba.org/common">
- <term><anchor id="USERNAMEMAP"/>username map (G)</term>
- <listitem><para>This option allows you to specify a file containing
- a mapping of usernames from the clients to the server. This can be
- used for several purposes. The most common is to map usernames
- that users use on DOS or Windows machines to those that the UNIX
- box uses. The other is to map multiple users to a single username
- so that they can more easily share files.</para>
-
- <para>The map file is parsed line by line. Each line should
- contain a single UNIX username on the left then a '=' followed
- by a list of usernames on the right. The list of usernames on the
- right may contain names of the form @group in which case they
- will match any UNIX username in that group. The special client
- name '*' is a wildcard and matches any name. Each line of the
- map file may be up to 1023 characters long.</para>
-
- <para>The file is processed on each line by taking the
- supplied username and comparing it with each username on the right
- hand side of the '=' signs. If the supplied name matches any of
- the names on the right hand side then it is replaced with the name
- on the left. Processing then continues with the next line.</para>
-
- <para>If any line begins with a '#' or a ';' then it is
- ignored</para>
-
- <para>If any line begins with an '!' then the processing
- will stop after that line if a mapping was done by the line.
- Otherwise mapping continues with every line being processed.
- Using '!' is most useful when you have a wildcard mapping line
- later in the file.</para>
-
- <para>For example to map from the name <constant>admin</constant>
- or <constant>administrator</constant> to the UNIX name <constant>
- root</constant> you would use:</para>
-
- <para><command moreinfo="none">root = admin administrator</command></para>
-
- <para>Or to map anyone in the UNIX group <constant>system</constant>
- to the UNIX name <constant>sys</constant> you would use:</para>
-
- <para><command moreinfo="none">sys = @system</command></para>
-
- <para>You can have as many mappings as you like in a username
- map file.</para>
-
-
- <para>If your system supports the NIS NETGROUP option then
- the netgroup database is checked before the <filename moreinfo="none">/etc/group
- </filename> database for matching groups.</para>
-
- <para>You can map Windows usernames that have spaces in them
- by using double quotes around the name. For example:</para>
-
- <para><command moreinfo="none">tridge = &quot;Andrew Tridgell&quot;</command></para>
-
- <para>would map the windows username &quot;Andrew Tridgell&quot; to the
- unix username &quot;tridge&quot;.</para>
-
- <para>The following example would map mary and fred to the
- unix user sys, and map the rest to guest. Note the use of the
- '!' to tell Samba to stop processing if it gets a match on
- that line.</para>
-
-<para><programlisting format="linespecific">
-!sys = mary fred
-guest = *
-</programlisting></para>
-
- <para>Note that the remapping is applied to all occurrences
- of usernames. Thus if you connect to \\server\fred and <constant>
- fred</constant> is remapped to <constant>mary</constant> then you
- will actually be connecting to \\server\mary and will need to
- supply a password suitable for <constant>mary</constant> not
- <constant>fred</constant>. The only exception to this is the
- username passed to the <link linkend="PASSWORDSERVER"><parameter moreinfo="none">
- password server</parameter></link> (if you have one). The password
- server will receive whatever username the client supplies without
- modification.</para>
-
- <para>Also note that no reverse mapping is done. The main effect
- this has is with printing. Users who have been mapped may have
- trouble deleting print jobs as PrintManager under WfWg will think
- they don't own the print job.</para>
-
- <para>Default: <emphasis>no username map</emphasis></para>
- <para>Example: <command moreinfo="none">username map = /usr/local/samba/lib/users.map
- </command></para>
- </listitem>
- </samba:parameter>