DNS 4 NOTIMP vs 17 BADKEY
Both DNS 4 (NOTIMP) and 17 (BADKEY) belong to the DNS Response Codes (RCODEs) category. 4 indicates that not Implemented. The name server does not support the requested query type or operation. Meanwhile, 17 means that key not recognized. The TSIG key name in the message is not configured on the server.
Deskripsi
Not Implemented. The name server does not support the requested query type or operation.
Ketika Anda Melihatnya
You sent a query type (e.g., IXFR, dynamic update) that the server does not support or has disabled.
Cara Memperbaiki
Verify the server supports the query type you are using. If you need zone transfers or dynamic updates, enable them in the server configuration.
Deskripsi
Key not recognized. The TSIG key name in the message is not configured on the server.
Ketika Anda Melihatnya
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.
Cara Memperbaiki
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.
Perbedaan Utama
DNS 4: Not Implemented. The name server does not support the requested query type or operation.
DNS 17: Key not recognized. The TSIG key name in the message is not configured on the server.
You encounter 4 when you sent a query type (e.g., IXFR, dynamic update) that the server does not support or has disabled.
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.
Kapan Menggunakan Yang Mana
For 4 (NOTIMP): Verify the server supports the query type you are using. If you need zone transfers or dynamic updates, enable them in the server configuration. 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.