bind – update of bind9 nsupdate failed: NOTAUTH


This is my named.conf.local

zone "domain.ext" {
     type master;
     file "/etc/bind/zones/domain.ext.db";
     allow-update {localhost;};
};

And the domain.ext.db file:

;
; BIND data file for domain.ext
;
$TTL    3h
@       IN      SOA     ns1.dmian.ext. email.domain.ext. (
                          1        ; Serial
                          3h       ; Refresh after 3 hours
                          1h       ; Retry after 1 hour
                          1w       ; Expire after 1 week
                          1h )     ; Negative caching TTL of 1 day
;
@       IN      NS      ns1.domain.ext.
@       IN      NS      ns2.domain.ext.


domain.ext.    IN      MX      10      mail.domain.ext.
domain.ext.    IN      A       10.10.10.1
ns1                     IN      A       10.10.10.1
ns2                     IN      A       10.10.10.1
www                     IN      CNAME   domain.ext.
mail                    IN      A       10.10.10.1
ftp                     IN      CNAME   domain.ext.
api.domain.ext. IN       A       10.10.10.1

Command nsupdate fails:

nsupdate

> update add ss.domain.ext 1 A 10.10.10.2
> send
> update add ss.domain.ext. 1 A 10.10.10.2
> send

in both directions appears: update failed: NOTAUTH
I do not want to use keys. I just need an update from the local.