DNS 7 YXRRSET vs 19 BADMODE
Both DNS 7 (YXRRSET) and 19 (BADMODE) belong to the DNS Response Codes (RCODEs) category. 7 indicates that rR Set Exists when it should not. A resource record set exists that the update prerequisite says should not. Meanwhile, 19 means that bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
Beschreibung
RR Set Exists when it should not. A resource record set exists that the update prerequisite says should not.
Wann Sie es sehen
A DNS UPDATE failed because a specific RRset (e.g., an A record) already exists when the prerequisite required it to be absent.
Wie man es behebt
Delete the conflicting RRset before retrying the update, or adjust your prerequisite conditions to match the actual zone state.
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 7: RR Set Exists when it should not. A resource record set exists that the update prerequisite says should not.
DNS 19: Bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
You encounter 7 when a DNS UPDATE failed because a specific RRset (e.g., an A record) already exists when the prerequisite required it to be absent.
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 7 (YXRRSET): Delete the conflicting RRset before retrying the update, or adjust your prerequisite conditions to match the actual zone state. 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.