DNS 11 DSOTYPENI vs 19 BADMODE
Both DNS 11 (DSOTYPENI) and 19 (BADMODE) belong to the DNS Response Codes (RCODEs) category. 11 indicates that dSO-TYPE Not Implemented. The DNS Stateful Operations (DSO) type in the request is not supported by the server. Meanwhile, 19 means that bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
설명
DSO-TYPE Not Implemented. The DNS Stateful Operations (DSO) type in the request is not supported by the server.
이 코드를 보게 되는 경우
Your client attempted a DSO operation (like a keepalive or push subscription) that the server does not recognize or has not implemented.
해결 방법
Verify that both client and server support the same DSO-TYPE. Upgrade the server software or fall back to traditional DNS queries.
설명
Bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
이 코드를 보게 되는 경우
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.
해결 방법
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.
주요 차이점
DNS 11: DSO-TYPE Not Implemented. The DNS Stateful Operations (DSO) type in the request is not supported by the server.
DNS 19: Bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
You encounter 11 when your client attempted a DSO operation (like a keepalive or push subscription) that the server does not recognize or has not implemented.
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.
언제 어떤 것을 사용할지
For 11 (DSOTYPENI): Verify that both client and server support the same DSO-TYPE. Upgrade the server software or fall back to traditional DNS queries. 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.