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Last change
on this file was 217, checked in by Herwig Bauernfeind, 16 years ago |
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Import Samba 3.3 branch at 3.3.0 level docs-xml (psmedley's port)
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File size:
1.6 KB
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| 1 | <samba:parameter name="ldapsam:trusted"
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| 2 | context="G"
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| 3 | type="string"
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| 4 | advanced="1" developer="0"
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| 5 | xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
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| 6 | <description>
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| 7 |
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| 8 | <para>
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| 9 | By default, Samba as a Domain Controller with an LDAP backend needs to use the Unix-style NSS subsystem to
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| 10 | access user and group information. Due to the way Unix stores user information in /etc/passwd and /etc/group
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| 11 | this inevitably leads to inefficiencies. One important question a user needs to know is the list of groups he
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| 12 | is member of. The plain UNIX model involves a complete enumeration of the file /etc/group and its NSS
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| 13 | counterparts in LDAP. UNIX has optimized functions to enumerate group membership. Sadly, other functions that
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| 14 | are used to deal with user and group attributes lack such optimization.
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| 15 | </para>
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| 16 |
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| 17 | <para>
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| 18 | To make Samba scale well in large environments, the <smbconfoption name="ldapsam:trusted">yes</smbconfoption>
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| 19 | option assumes that the complete user and group database that is relevant to Samba is stored in LDAP with the
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| 20 | standard posixAccount/posixGroup attributes. It further assumes that the Samba auxiliary object classes are
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| 21 | stored together with the POSIX data in the same LDAP object. If these assumptions are met,
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| 22 | <smbconfoption name="ldapsam:trusted">yes</smbconfoption> can be activated and Samba can bypass the
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| 23 | NSS system to query user group memberships. Optimized LDAP queries can greatly speed up domain logon and
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| 24 | administration tasks. Depending on the size of the LDAP database a factor of 100 or more for common queries
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| 25 | is easily achieved.
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| 26 | </para>
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| 27 |
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| 28 | </description>
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| 29 | <value type="default">no</value>
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| 30 | </samba:parameter>
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