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

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

session   required    /usr/local/lib/security/pam_krb5.so
session   required    pam_permit.so

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