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.\" Manual: System Administration tools
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.TH "IDMAP_HASH" "8" "05/10/2010" "Samba 3\&.4" "System Administration tools"
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idmap_hash \- Samba\'s idmap_hash Backend for Winbind
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The idmap_hash plugin implements a hashing algorithm used to map SIDs for domain users and groups to 31\-bit uids and gids, respectively\&. This plugin also implements the nss_info API and can be used to support a local name mapping files if enabled via the "winbind normalize names" and "winbind nss info" parameters in smb\&.conf\&.
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Specifies the absolute path to the name mapping file used by the nss_info API\&. Entries in the file are of the form "\fIunix name\fR
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\fIqualified domain name\fR"\&. Mapping of both user and group names is supported\&.
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The following example utilizes the idmap_hash plugin for the idmap and nss_info information\&.
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idmap uid = 1000\-4000000000
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idmap gid = 1000\-4000000000
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winbind nss info = hash
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winbind normalize names = yes
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idmap_hash:name_map = /etc/samba/name_map\&.cfg
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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\&.