IDMAP_RID(8) System Administration tools IDMAP_RID(8)NAMEidmap_rid - Samba's idmap_rid Backend for Winbind
The idmap_rid backend provides a way to use an algorithmic mapping
scheme to map UIDs/GIDs and SIDs. No database is required in this case
as the mapping is deterministic.
range = low - high
Defines the available matching uid and gid range for which the
backend is authoritative. Note that the range acts as a filter. If
algorithmically determined UID or GID fall outside the range, they
are 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.
base_rid = INTEGER
Defines the base integer used to build SIDs out of an UID or a GID,
and to rebase the UID or GID to be obtained from a SID. User RIDs
by default start at 1000 (512 hexadecimal), this means a good value
for base_rid can be 1000 as the resulting ID is calculated this
way: ID = RID - BASE_RID + LOW RANGE ID.
This example shows how to configure 2 domains with idmap_rid
idmap domains = MAIN TRUSTED1
idmap config MAIN:backend = rid
idmap config MAIN:base_rid = 0
idmap config MAIN:range = 10000 - 49999
idmap config TRUSTED1:backend = rid
idmap config TRUSTED1:base_rid = 1000
idmap config TRUSTED1:range = 50000 - 99999
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.
Samba 3.0 05/28/2008 IDMAP_RID(8)