Hi,

just a quick heads up about an old question from 2019 on this list:

On Monday, April 29, 2019 23:49 CEST Quanah Gibson-Mount <qua...@symas.com> 
wrote:
> [...]
> > Is it possible to define two overlay configs or will they end up
> > fighting each other over the memberOf attribute?
> [...]
> I believe it should work fine.

While Quanah is right, that loading two instances of slapo-memberof works fine 
if configured with different target attributes (config option 
`memberof-memberof-ad`), technically slapd denies loading multiple instances of 
overlays since 2009: <https://bugs.openldap.org/show_bug.cgi?id=6030>

Maybe one could challenge that decision to deny loading multiple instances per 
se, as I think this limitation is not inherent to overlays in general but may 
be reasonable for specific modules. Actually, I understand that some overlay 
modules specify "SLAPO_BFLAG_SINGLE", so the general constraint introduced via 
<https://git.openldap.org/search?group_id=13&project_id=1&repository_ref=master&scope=commits&search=its%236030>
 may be a child of its time and unnecessary today. See also 
<https://bugs.openldap.org/show_bug.cgi?id=9309#c2>.

Thanks and regards,
Arvid

> On Monday, April 29, 2019 23:49 CEST Quanah Gibson-Mount <qua...@symas.com> 
> wrote:
> 
> 
> --On Wednesday, April 24, 2019 2:47 PM -0400 "John C. Pfeifer"
> <pfei...@umd.edu> wrote:
> 
> > I am in the process of converting an existing LDAP infrastructure to
> > OpenLDAP. I have a case where it would be convenient for two different
> > objectClasses to map into the memberOf attribute. Is it possible to
> > define two overlay configs or will they end up fighting each other over
> > the memberOf attribute? For instance:
> Hi John,
> 
> I believe it should work fine.
> 
> Regards,
> Quanah
> 
> 
> 
> --
> 
> Quanah Gibson-Mount
> Product Architect
> Symas Corporation
> Packaged, certified, and supported LDAP solutions powered by OpenLDAP:
> <http://www.symas.com>

-- 
Arvid Requate
Open Source Software Engineer
Phone: +49 (0) 421 22232-52

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