Full_Name: Thomas Keil Version: 2.4.40 OS: Debian 8.0 Jessie URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (139.30.84.202)
This is a software enhancement request.
I have the following use case at hand: My university provides a central LDAP directory which authenticates users but does not contain group information. For my institute we want to set up our own OpenLDAP server which relays the user authentication to the central directory (via back_ldap) but additionally provides group information. This should be used by a network of linux machines for user authentication, group management and login filtering. For reasons of high availability we want to replicate our local LDAP server using the builtin replication mechanism of OpenLDAP.
This seems to be a nice example for the use of the translucent backend. Nevertheless group membership (for login filtering) can only be provided using the memberof overlay which (so it seems) is not compatible with the translucent overlay. Furthermore the syncprov overlay needs to access the lastmod attribute which is disabled for databases using the translucent overlay. Thus a local database combined with the translucent overlay cannot be replicated at all.
To me it seems that these problems can be solved by allowing write access to the local database for other overlays when used in combination with the translucent overlay. It would make this overlay much more useful than it is right now since it would allow to use this in large scale deployments as well (where replication is essential). This is valid especially for cases where the local administration has no write access to the central directory.