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NIS to Active Directory Migration

 
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Old 10-04-2012
NIS to Active Directory Migration
Hello,

This is my first ever post on Unix anything Smilie. I really am a total newb when it comes to Unix. I am fairly well versed in the Windows world though.
I have a project that I was pulled into which consists on migrating our Unix servers from authenticating with NIS, over to authenticating with Active Directory (company audit policy). All of the users already have user IDs in active directory for separate Windows accounts. There are over a 1000 users that we will have to migrate.
The main issue is that there are a lot of folder/files on these servers that are access controlled by NIS and when we migrate, we would need these controlled by AD (I believe). I'm sure that there are a ton of groups and files that would need this migration applied to them. What is the best way to go about this?
Some one threw out the option to use UNAB to help us out. What do you think about this tool? Is there others that would do a better job? Is there better ways to go about the whole thing? Any help would be appreciated. Thanks
 
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LEARN ABOUT SUSE

idmap_adex

IDMAP_ADEX(8)						    System Administration tools 					     IDMAP_ADEX(8)

NAME

       idmap_adex - Samba's idmap_adex Backend for Winbind

DESCRIPTION

       The idmap_adex plugin provides a way for Winbind to read id mappings from an AD server that uses RFC2307 schema extensions. This module
       implements both the idmap and nss_info APIs and supports domain trustes as well as two-way cross forest trusts. It is a read-only plugin
       requiring that the administrator provide mappings in advance by adding the POSIX attribute information to the users and groups objects in
       AD. The most common means of doing this is using "Identity Services for Unix" support on Windows 2003 R2 and later.

       Note that you must add the uidNumber, gidNumber, and uid attributes to the partial attribute set of the forest global catalog servers. This
       can be done using the Active Directory Schema Management MMC plugin (schmmgmt.dll).

NSS_INFO
       The nss_info plugin supports reading the unixHomeDirectory, gidNumber, loginShell, and uidNumber attributes from the user object and the
       gidNumber attribute from the group object to fill in information required by the libc getpwnam() and getgrnam() family of functions. Group
       membership is filled in according to the Windows group membership and not the msSFU30PosixMember attribute.

       Username aliases are implement by setting the uid attribute on the user object. While group name aliases are implemented by reading the
       displayname attribute from the group object.

EXAMPLES

       The following example shows how to retrieve idmappings and NSS data from our principal and trusted AD domains.

		[global]
		idmap backend = adex
		idmap uid = 1000-4000000000
		idmap gid = 1000-4000000000

		winbind nss info = adex
		winbind normalize names = yes

AUTHOR

       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 3.5							    06/18/2010							     IDMAP_ADEX(8)