| 1 | '\" t
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| 2 | .\" Title: idmap_ad
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| 3 | .\" Author: [see the "AUTHOR" section]
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| 4 | .\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
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| 5 | .\" Date: 05/02/2016
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| 6 | .\" Manual: System Administration tools
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| 7 | .\" Source: Samba 4.4
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| 8 | .\" Language: English
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| 9 | .\"
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| 10 | .TH "IDMAP_AD" "8" "05/02/2016" "Samba 4\&.4" "System Administration tools"
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| 11 | .\" -----------------------------------------------------------------
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| 12 | .\" * Define some portability stuff
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| 13 | .\" -----------------------------------------------------------------
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| 14 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 15 | .\" http://bugs.debian.org/507673
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| 16 | .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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| 17 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 18 | .ie \n(.g .ds Aq \(aq
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| 19 | .el .ds Aq '
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| 20 | .\" -----------------------------------------------------------------
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| 21 | .\" * set default formatting
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| 22 | .\" -----------------------------------------------------------------
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| 23 | .\" disable hyphenation
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| 24 | .nh
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| 25 | .\" disable justification (adjust text to left margin only)
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| 26 | .ad l
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| 27 | .\" -----------------------------------------------------------------
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| 28 | .\" * MAIN CONTENT STARTS HERE *
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| 29 | .\" -----------------------------------------------------------------
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| 30 | .SH "NAME"
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| 31 | idmap_ad \- Samba\*(Aqs idmap_ad Backend for Winbind
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| 32 | .SH "DESCRIPTION"
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| 33 | .PP
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| 34 | The idmap_ad plugin provides a way for Winbind to read id mappings from an AD server that uses RFC2307/SFU schema extensions\&. This module implements only the "idmap" API, and is READONLY\&. Mappings must be provided in advance by the administrator by adding the uidNumber attributes for users and gidNumber attributes for groups in the AD\&. Winbind will only map users that have a uidNumber and whose primary group have a gidNumber attribute set\&. It is however recommended that all groups in use have gidNumber attributes assigned, otherwise they are not working\&.
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| 35 | .PP
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| 36 | Currently, the
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| 37 | \fIad\fR
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| 38 | backend does not work as the default idmap backend, but one has to configure it separately for each domain for which one wants to use it, using disjoint ranges\&. One usually needs to configure a writeable default idmap range, using for example the
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| 39 | \fItdb\fR
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| 40 | or
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| 41 | \fIldap\fR
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| 42 | backend, in order to be able to map the BUILTIN sids and possibly other trusted domains\&. The writeable default config is also needed in order to be able to create group mappings\&. This catch\-all default idmap configuration should have a range that is disjoint from any explicitly configured domain with idmap backend
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| 43 | \fIad\fR\&. See the example below\&.
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| 44 | .SH "IDMAP OPTIONS"
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| 45 | .PP
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| 46 | range = low \- high
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| 47 | .RS 4
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| 48 | Defines the available matching UID and GID range for which the backend is authoritative\&. Note that the range acts as a filter\&. If specified any UID or GID stored in AD that fall outside the range is ignored and the corresponding map is discarded\&. It is intended as a way to avoid accidental UID/GID overlaps between local and remotely defined IDs\&.
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| 49 | .RE
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| 50 | .PP
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| 51 | schema_mode = <rfc2307 | sfu | sfu20>
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| 52 | .RS 4
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| 53 | Defines the schema that idmap_ad should use when querying Active Directory regarding user and group information\&. This can be either the RFC2307 schema support included in Windows 2003 R2 or the Service for Unix (SFU) schema\&. For SFU 3\&.0 or 3\&.5 please choose "sfu", for SFU 2\&.0 please choose "sfu20"\&. Please note that primary group membership is currently always calculated via the "primaryGroupID" LDAP attribute\&.
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| 54 | .RE
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| 55 | .SH "EXAMPLES"
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| 56 | .PP
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| 57 | The following example shows how to retrieve idmappings from our principal and trusted AD domains\&. If trusted domains are present id conflicts must be resolved beforehand, there is no guarantee on the order conflicting mappings would be resolved at this point\&. This example also shows how to leave a small non conflicting range for local id allocation that may be used in internal backends like BUILTIN\&.
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| 58 | .sp
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| 59 | .if n \{\
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| 60 | .RS 4
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| 61 | .\}
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| 62 | .nf
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| 63 | [global]
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| 64 | workgroup = CORP
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| 65 |
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| 66 | idmap config * : backend = tdb
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| 67 | idmap config * : range = 1000000\-1999999
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| 68 |
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| 69 | idmap config CORP : backend = ad
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| 70 | idmap config CORP : range = 1000\-999999
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| 71 |
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| 72 | .fi
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| 73 | .if n \{\
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| 74 | .RE
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| 75 | .\}
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| 76 | .SH "AUTHOR"
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| 77 | .PP
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| 78 | The original Samba software and related utilities were created by Andrew Tridgell\&. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed\&.
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