Dear all, I have configured freeradius with ldap backed as given in http://freeradius.org/radiusd/doc/ldap_howto.txt. The user get authorized but the authentication failed. The detail output is here: Ready to process requests. rad_recv: Access-Request packet from host a.b.c.d:3272, id=0, length=47 User-Name = "abc" User-Password = "12345" Processing the authorize section of radiusd.conf modcall: entering group authorize for request 0 modcall[authorize]: module "preprocess" returns ok for request 0 modcall[authorize]: module "chap" returns noop for request 0 modcall[authorize]: module "mschap" returns noop for request 0 rlm_ldap: - authorize rlm_ldap: performing user authorization for abc radius_xlat: '(uid=abc)' radius_xlat: 'ou=users,ou=radius,dc=whitehouse,dc=edu' rlm_ldap: ldap_get_conn: Checking Id: 0 rlm_ldap: ldap_get_conn: Got Id: 0 rlm_ldap: attempting LDAP reconnection rlm_ldap: (re)connect to x.x.x.x:389, authentication 0 rlm_ldap: could not set LDAP_OPT_X_TLS_REQUIRE_CERT option to allow rlm_ldap: bind as cn=Manager,dc=whitehouse,dc=edu/password to x.x.x.x:389 rlm_ldap: waiting for bind result ... rlm_ldap: Bind was successful rlm_ldap: performing search in ou=users,ou=radius,dc=whitehouse,dc=edu, with filter (uid=abc) rlm_ldap: Added password 12345 in check items rlm_ldap: looking for check items in directory... rlm_ldap: looking for reply items in directory... rlm_ldap: Setting Auth-Type = ldap rlm_ldap: user abc authorized to use remote access rlm_ldap: ldap_release_conn: Release Id: 0 modcall[authorize]: module "ldap" returns ok for request 0 modcall: leaving group authorize (returns ok) for request 0 rad_check_password: Found Auth-Type ldap auth: type "LDAP" Processing the authenticate section of radiusd.conf modcall: entering group LDAP for request 0 rlm_ldap: - authenticate rlm_ldap: login attempt by "abc" with password "12345" rlm_ldap: user DN: uid=abc,ou=users,ou=radius,dc=whitehouse,dc=edu rlm_ldap: (re)connect to x.x.x.x:389, authentication 1 rlm_ldap: could not set LDAP_OPT_X_TLS_REQUIRE_CERT option to allow rlm_ldap: bind as uid=abc,ou=users,ou=radius,dc=whitehouse,dc=edu/12345 to x.x.x.x:389 rlm_ldap: waiting for bind result ... rlm_ldap: Bind failed with invalid credentials modcall[authenticate]: module "ldap" returns reject for request 0 modcall: leaving group LDAP (returns reject) for request 0 auth: Failed to validate the user. Delaying request 0 for 1 seconds Can anyone help me??