DNS 0 NOERROR vs 9 NOTAUTH
Both DNS 0 (NOERROR) and 9 (NOTAUTH) belong to the DNS Response Codes (RCODEs) category. 0 indicates that no error condition. The query completed successfully and the response contains the requested data. Meanwhile, 9 means that server Not Authoritative for zone, or Not Authorized. The server is not authoritative for the zone named in the Zone section.
Description
No error condition. The query completed successfully and the response contains the requested data.
Quand vous le voyez
This is the normal, successful response to any DNS query — the name was resolved and the answer section contains the requested records.
Comment résoudre
No fix needed. RCODE 0 means the DNS lookup succeeded as expected.
Description
Server Not Authoritative for zone, or Not Authorized. The server is not authoritative for the zone named in the Zone section.
Quand vous le voyez
You sent a dynamic update or zone operation to a server that is not the authoritative master for that zone, or the server rejected it due to TSIG authentication failure.
Comment résoudre
Send the update to the correct primary authoritative server for the zone. If using TSIG, verify the key name and secret match on both client and server.
Différences clés
DNS 0: No error condition. The query completed successfully and the response contains the requested data.
DNS 9: Server Not Authoritative for zone, or Not Authorized. The server is not authoritative for the zone named in the Zone section.
You encounter 0 when this is the normal, successful response to any DNS query — the name was resolved and the answer section contains the requested records.
You encounter 9 when you sent a dynamic update or zone operation to a server that is not the authoritative master for that zone, or the server rejected it due to TSIG authentication failure.
Quand utiliser lequel
For 0 (NOERROR): No fix needed. RCODE 0 means the DNS lookup succeeded as expected. For 9 (NOTAUTH): Send the update to the correct primary authoritative server for the zone. If using TSIG, verify the key name and secret match on both client and server.