slim-nopasswdchar/slim.pam

   1 #%PAM-1.0
   2 auth            requisite       pam_nologin.so
   3 auth            required        pam_env.so
   4 auth            required        pam_unix.so
   5 account         required        pam_unix.so
   6 session         required        pam_limits.so
   7 session         required        pam_unix.so
   8 password        required        pam_unix.so