# auth
auth    sufficient    /usr/local/lib/security/pam_krb5.so try_first_pass
auth    required      pam_unix.so no_warn try_first_pass

# account
account   required    /usr/local/lib/security/pam_krb5.so
account   required    pam_login_access.so
account   required    pam_unix.so

# session
account   required    pam_permit.so

# password
password  sufficient  /usr/local/lib/security/pam_krb5.so try_first_pass
password  required    pam_unix.so no_warn try_first_pass