Hi.. I figured it out.. my libpam was 0.68. After I got the latest and compiled it, things started working :-) .. Thanks! Manju ---------------------------------------------------------------------------- ----------------------------- Hello everyone, When I use pam_stack, the username propagated to the underlying stacked modules is "login". The password is propagated properly but the login name is not. My conf files are: /etc/pam.d/login: auth required /lib/security/pam_securetty.so #auth sufficient /lib/security/pam_radius_auth.so debug auth sufficient /lib/security/pam_stack.so service=system-auth auth required /lib/security/pam_pwdb.so shadow nullok auth required /lib/security/pam_nologin.so account required /lib/security/pam_pwdb.so password required /lib/security/pam_cracklib.so password required /lib/security/pam_pwdb.so nullok use_authtok md5 shadow session required /lib/security/pam_pwdb.so /etc/pam.d/system-auth auth sufficient /lib/security/pam_radius_auth.so debug If i dont use the pam_stack and uncomment the line in /etc/pam.d/login, it works fine. I am on a ppc running redhat 6.2 Thanks for all the help, Manju