Listing 3. Login Doing Authentication

#/etc/pam.d/login

auth      required        /lib/security/pam_securetty.so
auth      sufficient      /lib/security/pam_ldap.so
auth      required        /lib/security/pam_unix.so shadow nullok
auth      required        /lib/security/pam_nologin.so
account   sufficient      /lib/security/pam_ldap.so
account   required        /lib/security/pam_unix.so
password  required        /lib/security/pam_cracklib.so
password  sufficient      /lib/security/pam_ldap.so
password  required        /lib/security/pam_unix.so shadow nullok use_authtok
session   sufficient      /lib/security/pam_ldap.so
session   required        /lib/security/pam_unix.so