1 <samba:parameter name="add user script"
4 advanced="1" developer="1"
5 xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
8 This is the full pathname to a script that will be run <emphasis>AS ROOT</emphasis> by
9 <citerefentry><refentrytitle>smbd</refentrytitle> <manvolnum>8</manvolnum></citerefentry>
10 under special circumstances described below.
14 Normally, a Samba server requires that UNIX users are created for all users accessing
15 files on this server. For sites that use Windows NT account databases as their primary
16 user database creating these users and keeping the user list in sync with the Windows
17 NT PDC is an onerous task. This option allows smbd to create the required UNIX users
18 <emphasis>ON DEMAND</emphasis> when a user accesses the Samba server.
22 When the Windows user attempts to access the Samba server, at login (session setup in
23 the SMB protocol) time, <citerefentry><refentrytitle>smbd</refentrytitle>
24 <manvolnum>8</manvolnum></citerefentry> contacts the <smbconfoption name="password server"/>
25 and attempts to authenticate the given user with the given password. If the authentication
26 succeeds then <command moreinfo="none">smbd</command> attempts to find a UNIX user in the UNIX
27 password database to map the Windows user into. If this lookup fails, and
28 <smbconfoption name="add user script"/> is set then <command moreinfo="none">smbd</command> will
29 call the specified script <emphasis>AS ROOT</emphasis>, expanding any
30 <parameter moreinfo="none">%u</parameter> argument to be the user name to create.
34 If this script successfully creates the user then <command moreinfo="none">smbd</command> will
35 continue on as though the UNIX user already existed. In this way, UNIX users are dynamically created to
36 match existing Windows NT accounts.
40 See also <smbconfoption name="security"/>, <smbconfoption name="password server"/>,
41 <smbconfoption name="delete user script"/>.
45 <value type="default"/>
46 <value type="example">/usr/local/samba/bin/add_user %u</value>