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Vintela: integrating Linux and Windows user, account and policy management

Just to be fair, I've been looking for ways to integrate user, account and policy management between Linux and Windows. I have a corporate Active Directory they want me to adhere to/with. So using AD as the main system, because they know how to maintain it and procedures are in place, I'd couple Oracle Linux's user accounts and groups with AD.
Vintela also claims to do this, just like Centrify and Unix Components of Windows Server 2003 R2. But personally, I'm still charmed by PADL's NIS/LDAP gateway. I like using NIS to provide seamless account and access rights management with some other system that uses LDAP. That way I could potentially choose to work with MS AD, Novell NDS or a home built openLDAP authentication back-end.
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