Hello, I'm trying to install PAM-0.74 on slackware-7.0 and testing example "check_user". I edit my /etc/pam.conf as follows: check auth required pam_unix.so check account required pam_unix.so and run "check_user". #./check_user toshi Password: (my password) Authenticated It worked. I changed /etc/pam.conf as follows: check auth required pam_userdb.so db=/tmp/passwd check account required pam_userdb.so db=/tmp/passwd and created /tmp/passwd with Linux-PAM-0.74/modules/pam_userdb/create.pl. #./check_user toshi Not Authenticated I'm getting the following error in syslog: Feb 18 04:56:27 dell check_user: PAM unable to dlopen(/lib/security/pam_userdb.s o) Feb 18 04:56:27 dell check_user: PAM [dlerror: /lib/security/pam_userdb.so: unde fined symbol: conversation] Feb 18 04:56:27 dell check_user: PAM adding faulty module: /lib/security/pam_use rdb.so pam_userdb.so is in /lib/security. Why do I get these error? help me. I'm sorry for my bad English... --- Toshikazu Yoshikawa