Please help me, I cannot get this to work. It's driving me crazy. This is what I did: Setup FDS over SSL using certutil. Windows 2000 AD server with "Enterprise Certificate Authority" Can search AD over SSL ( using ldp.exe, people search over ssl, and openldap ldapsearch over ssl -H ldaps://) Installed PassSync ( used FDS host, port 636, FDS Manager account cn=Manager, FDS cert db password, FDS base ) Exported FDS certs ( per howto:ssl ) and imported them into AD ( certutil databases on windows side ) Setup changelog ( default ) and single master replication Setup windows sync agreement ( bind as AD administrator account cn=administrator,cn=users,....) Then I test SSL connection from FDS to AD: ../shared/bin/ldapsearch -X -h ad-host -p 636 -D "cn=administrator,cn=users,... -w - -s base -b "" "objectclass=*" ldap_init( ad.server.xxx.xxx, 636 ) ldaptool_getcertpath -- . ldaptool_getkeypath -- . ldaptool_getmodpath -- (null) ldaptool_getdonglefilename -- (null) ldap_simple_bind: Can't contact LDAP server SSL error -8179 (Peer's Certificate issuer is not recognized.) OpenLDAP ldapsearch ldapsearch -x -H ldaps://ad-host works On Windows Machine: certutil -L -d . CA certificate CT,C,C Server-Cert Pu,Pu,Pu On FDS server (FC4): # ../shared/bin/certutil -L -d . CA certificate CTu,u,u Server-Cert u,u,u I have no idea what to try next. Please help