DNS 9 NOTAUTH vs 19 BADMODE
Both DNS 9 (NOTAUTH) and 19 (BADMODE) belong to the DNS Response Codes (RCODEs) category. 9 indicates that server Not Authoritative for zone, or Not Authorized. The server is not authoritative for the zone named in the Zone section. Meanwhile, 19 means that bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
描述
Server Not Authoritative for zone, or Not Authorized. The server is not authoritative for the zone named in the Zone section.
何时出现
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.
如何修复
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.
描述
Bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
何时出现
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.
如何修复
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.
主要区别
DNS 9: Server Not Authoritative for zone, or Not Authorized. The server is not authoritative for the zone named in the Zone section.
DNS 19: Bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
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.
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.
何时使用哪个
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. 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.