Has anyone seen this error while trying to use the following PAM configuration: I have this in /etc/pam.d/login: auth optional /lib/security/pam_lastlog.so The error message is logged to /var/log/messages : Feb 15 17:52:16 testhost1 login: PAM unable to dlopen(/lib/security/pam_lastlog.so) Feb 15 17:52:16 testhost1 login: PAM [dlerror: /lib/security/pam_lastlog.so: undefined symbol: logwtmp] Feb 15 17:52:16 testhost1 login: PAM adding faulty module: /lib/security/pam_lastlog.so I have found this in the rpm pam-0.72-20 and pam-0.72-20.6.x Cheers, JP