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-<samba:parameter xmlns:samba="http://samba.org/common">
- <term><anchor id="USERNAME"/>username (S)</term>
- <listitem><para>Multiple users may be specified in a comma-delimited
- list, in which case the supplied password will be tested against
- each username in turn (left to right).</para>
-
- <para>The <parameter moreinfo="none">username</parameter> line is needed only when
- the PC is unable to supply its own username. This is the case
- for the COREPLUS protocol or where your users have different WfWg
- usernames to UNIX usernames. In both these cases you may also be
- better using the \\server\share%user syntax instead.</para>
-
- <para>The <parameter moreinfo="none">username</parameter> line is not a great
- solution in many cases as it means Samba will try to validate
- the supplied password against each of the usernames in the
- <parameter moreinfo="none">username</parameter> line in turn. This is slow and
- a bad idea for lots of users in case of duplicate passwords.
- You may get timeouts or security breaches using this parameter
- unwisely.</para>
-
- <para>Samba relies on the underlying UNIX security. This
- parameter does not restrict who can login, it just offers hints
- to the Samba server as to what usernames might correspond to the
- supplied password. Users can login as whoever they please and
- they will be able to do no more damage than if they started a
- telnet session. The daemon runs as the user that they log in as,
- so they cannot do anything that user cannot do.</para>
-
- <para>To restrict a service to a particular set of users you
- can use the <link linkend="VALIDUSERS"><parameter moreinfo="none">valid users
- </parameter></link> parameter.</para>
-
- <para>If any of the usernames begin with a '@' then the name
- will be looked up first in the NIS netgroups list (if Samba
- is compiled with netgroup support), followed by a lookup in
- the UNIX groups database and will expand to a list of all users
- in the group of that name.</para>
-
- <para>If any of the usernames begin with a '+' then the name
- will be looked up only in the UNIX groups database and will
- expand to a list of all users in the group of that name.</para>
-
- <para>If any of the usernames begin with a '&amp;' then the name
- will be looked up only in the NIS netgroups database (if Samba
- is compiled with netgroup support) and will expand to a list
- of all users in the netgroup group of that name.</para>
-
- <para>Note that searching though a groups database can take
- quite some time, and some clients may time out during the
- search.</para>
-
- <para>See the section <link linkend="VALIDATIONSECT">NOTE ABOUT
- USERNAME/PASSWORD VALIDATION</link> for more information on how
- this parameter determines access to the services.</para>
-
- <para>Default: <command moreinfo="none">The guest account if a guest service,
- else &lt;empty string&gt;.</command></para>
-
- <para>Examples:<command moreinfo="none">username = fred, mary, jack, jane,
- @users, @pcgroup</command></para>
- </listitem>
- </samba:parameter>