Re: [389-users] Multi-master replication + AD password synchronisation

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Johan Venter wrote:
> Hi all,
>
> I have the following situation:
>   - ds1 running 1.2.6.a3
>   - ds2 running 1.2.5.rc3 (yes, I will get around to bringing them up to
>     the same version soon)
>   - Multi-master replication agreements between both hosts
>   - A synchronisation agreement to a Windows 2008 AD on ds1
>
> Although I am sure I have tested password changes on ds2 synchronising 
> to ds1 then to the AD I have recently put ds2 in production and found 
> that this is not working. To be more specific:
>   - Password changes on Windows work fine, as the Password Sync service
>     picks them up, pushes them to ds1, which then replicates the change
>     to ds2
>   - Password changes on ds1 work fine, are replicated to ds2 and are
>     synchronised to AD
>   - Password changes on ds2 replicate to ds1, and while there are
>     entries in the Replication log on ds1 for a modification to the AD,
>     the Windows password is not changed
>
> Looking at the documentation at 
> http://www.redhat.com/docs/manuals/dir-server/8.1/admin/Windows_Sync.html#Windows_Sync-About_Windows_Sync 
> there are no caveats mentioned regarding multi-master replication and AD 
> password sync, in fact their provided architecture diagram (lower part 
> of the page) seems to indicate it should work in this situation. 
>   
I guess we should make it clear, because it does not work.  See 
https://bugzilla.redhat.com/show_bug.cgi?id=182507
> Furthermore, the text backs this up with:
>
> "The Directory Server relies on the Multi-Master Replication Plug-in to 
> synchronize user and group entries. The same changelog that is used for 
> multi-master replication is also used to send updates from the Directory 
> Server to Active Directory as LDAP operations."
>
> and
>
> "Directory Server passwords are synchronized along with other entry 
> attributes because plain-text passwords are retained in the Directory 
> Server changelog."
>
> I did search the mailing list and turned up 
> http://lists.fedoraproject.org/pipermail/389-users/2010-January/010903.html 
> but I was hoping there is a different answer 6 months on. It seems to me 
> that if 389 is storing password changes in the clear in the changelog 
> that it should be able to push this cleartext password to AD when ds1 
> gets the replication?
>
> Alternatively if this is absolutely just not a supported feature, would 
> it be possible to setup a second AD synchronisation agreement on ds2 to 
> the AD but specify ONLY to sync userPassword attribute changes? 
> (disabling the create/delete new user/group options in the sync 
> agreement of course to try and not cause loops or other problems).
>
> The same documentation references above specifically says NOT to have 
> different DS's syncing to the same AD domain, but does that still apply 
> if it's a very limited attribute synchronisation?
>
> Any help appreciated.
>
> Cheers,
> Johan
> --
> 389 users mailing list
> 389-users@xxxxxxxxxxxxxxxxxxxxxxx
> https://admin.fedoraproject.org/mailman/listinfo/389-users
>   

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