DNS 0 NOERROR vs 19 BADMODE
Both DNS 0 (NOERROR) and 19 (BADMODE) 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, 19 means that bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
Beschreibung
No error condition. The query completed successfully and the response contains the requested data.
Wann Sie es sehen
This is the normal, successful response to any DNS query — the name was resolved and the answer section contains the requested records.
Wie man es behebt
No fix needed. RCODE 0 means the DNS lookup succeeded as expected.
Beschreibung
Bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
Wann Sie es sehen
Your client attempted a TKEY key exchange using a mode (e.g., Diffie-Hellman, GSS-API) that the server does not support or has not been configured for.
Wie man es behebt
Check which TKEY modes the server supports and configure your client to use a compatible mode. GSS-TSIG (mode 3) is the most widely deployed.
Wesentliche Unterschiede
DNS 0: No error condition. The query completed successfully and the response contains the requested data.
DNS 19: Bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
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 19 when your client attempted a TKEY key exchange using a mode (e.g., Diffie-Hellman, GSS-API) that the server does not support or has not been configured for.
Wann welchen verwenden
For 0 (NOERROR): No fix needed. RCODE 0 means the DNS lookup succeeded as expected. For 19 (BADMODE): Check which TKEY modes the server supports and configure your client to use a compatible mode. GSS-TSIG (mode 3) is the most widely deployed.