export users with passwords hash from Active Directory (AD DS) to openLDAP using sha1hexfltr http://code.google.com/p/sha1hexfltr/ updates passwords hash for existing users. must be run with cron. requiere python 2.5-2.7 (python-ldap)
Alternative: proxy requests for specifyed suffix from openldap to active directory using ldap backend - slapd-ldap. example slapd conf.: database ldap suffix "cn=users,dc=testcorp,dc=com" subordinate rebind-as-user uri "ldap://dc1.testcorp.com/" chase-referrals yes