LDAP-UX Client Services B.05.01 Administrator Guide for HP directory servers and Windows ADS

Enable PAM logging as described in Section 7.13.2 (page 252) then try logging in again.
Examine the PAM logs for any unexpected events.
Enable LDAP-UX logging as described in Section 7.13.1 (page 251), then try logging in again.
Examine the log file for any unexpected events.
7.13 Troubleshooting 257