The company that I am working for is embarking on replacing the current locally developed NIS/YP structure with LDAP.

We already have AD in house for the Windows stuff and would like to consider using an AD system. The AD people are quite restrictive and would not support extensive modifications.

We have needs to have the replacement include the support the full capabilities of the NIS/YP suite include netgroups, login restrictions to specific servers for specific users or groups of users, consistent passwords between the *nix and Windows environment,etc. Our environment is a mixture of Linux (suse, RH, Debian), Sun, IBM, HP and MPRAS as well as a NETAPP. So whatever we use must be totally inclusive to all environment.

We have looked at Likewise, but our management wants other alternatives to compare with.

What other things should I be looking at and what is you assessment of the alternative?

Thanks