Hi,

In the meantime, i learned from the DirectoryEntry's source file that an anonymous bind is made first to  URL "LDAP://RootDSE", then the name of the domain is read from property "defaultNamingContext", then a second bind with sAMAccountName@domain is made. The problem is that i don't know how do do it with OpenLDAP API. Do you have any examples?

You should read ITS 8973: http://www.openldap.org/its/index.cgi?findid=8973

A change in OpenLDAP 2.4.47 prevents to use the C# DirectoryEntry / DirectorySearcher objects. You need to use System.DirectoryServices.Protocols to request an OpenLDAP directory.

-- 
Clément Oudot | Identity Solutions Manager

clement.oudot@worteks.com

Worteks | https://www.worteks.com