openssh/packages/redhat/sshd.pam

#%PAM-1.0
auth       required     /lib/security/pam_pwdb.so shadow nodelay
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 shadow nullok use_authtok
session    required     /lib/security/pam_pwdb.so
session    required     /lib/security/pam_limits.so