We moved from eDirectory to Active Directory and I have to change the ldap settings in koha-conf.xml Here my koha-conf.xml (part) (xxxxx replaced with real values on system) <useldapserver>1</useldapserver> <!-- LDAP SERVER (optional) --> <ldapserver id="ldapserver" listenref="ldapserver"> <hostname>xxxxx.kis.in</hostname> <base> dc=kis,dc=in</base> <user>cn=xxxxxx,dc=kis,dc=in</user> <!-- DN, if not anonymous --> <pass>xxxxxx</pass> <!-- password, if not anonymous --> <auth_by_bind>1</auth_by_bind> <principal_name>CN=%s@kis.in</principal_name> <replicate>0</replicate> <!-- add new users from LDAP to Koha database --> <update>0</update> <!-- xupdate existing users in Koha database --> <mapping> <!-- match koha SQL field names to your LDAP record field names --> <firstname is="givenname" ></firstname> <surname is="sn" ></surname> <address is="workforceID" >KIS</address> <city is="workforceID" >Kodaikanal</city> <zipcode is="workforceID" >624 101</zipcode> <branchcode is="workforceID" >KISHS</branchcode> <userid is="sAMAccountName" ></userid> <password is="workforceID" ></password> <email is="mail" ></email> <categorycode is="workforceID" >PT</categorycode> <phone is="workforceID"></phone> </mapping> </ldapserver> I could change Authentication in Moodle without a problem. What is wrong with my configuration for Koha? Rudy Wuthrich Kodaikanal International School (KIS) Tamil Nadu, India