DNS 5 REFUSED vs 17 BADKEY
Both DNS 5 (REFUSED) and 17 (BADKEY) belong to the DNS Response Codes (RCODEs) category. 5 indicates that query refused. The name server refuses to perform the requested operation for policy reasons. Meanwhile, 17 means that key not recognized. The TSIG key name in the message is not configured on the server.
Description
Query refused. The name server refuses to perform the requested operation for policy reasons.
Quand vous le voyez
The server rejected your query due to access control — for example, a recursive resolver that only serves its own network, or a zone transfer blocked by ACL.
Comment résoudre
Check the server's allow-query, allow-recursion, or allow-transfer ACLs. If you are not authorized to use this resolver, switch to a public DNS service.
Description
Key not recognized. The TSIG key name in the message is not configured on the server.
Quand vous le voyez
Your TSIG-signed query or update references a key name that the server does not have in its keyring, so it cannot verify the signature.
Comment résoudre
Ensure the TSIG key name matches exactly (case-sensitive) on both client and server. Add the missing key to the server's configuration if it is a new key.
Différences clés
DNS 5: Query refused. The name server refuses to perform the requested operation for policy reasons.
DNS 17: Key not recognized. The TSIG key name in the message is not configured on the server.
You encounter 5 when the server rejected your query due to access control — for example, a recursive resolver that only serves its own network, or a zone transfer blocked by ACL.
You encounter 17 when your TSIG-signed query or update references a key name that the server does not have in its keyring, so it cannot verify the signature.
Quand utiliser lequel
For 5 (REFUSED): Check the server's allow-query, allow-recursion, or allow-transfer ACLs. If you are not authorized to use this resolver, switch to a public DNS service. For 17 (BADKEY): Ensure the TSIG key name matches exactly (case-sensitive) on both client and server. Add the missing key to the server's configuration if it is a new key.