DNS 8 NXRRSET vs 17 BADKEY
Both DNS 8 (NXRRSET) and 17 (BADKEY) belong to the DNS Response Codes (RCODEs) category. 8 indicates that rR Set that should exist does not. A required resource record set is missing from the zone. Meanwhile, 17 means that key not recognized. The TSIG key name in the message is not configured on the server.
คำอธิบาย
RR Set that should exist does not. A required resource record set is missing from the zone.
เมื่อคุณพบเห็น
A DNS UPDATE prerequisite expected a certain RRset to exist (e.g., an MX record), but the zone does not contain it.
วิธีแก้ไข
Create the missing RRset in the zone before retrying the update, or change the prerequisite to not require its existence.
คำอธิบาย
Key not recognized. The TSIG key name in the message is not configured on the server.
เมื่อคุณพบเห็น
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.
วิธีแก้ไข
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.
ความแตกต่างหลัก
DNS 8: RR Set that should exist does not. A required resource record set is missing from the zone.
DNS 17: Key not recognized. The TSIG key name in the message is not configured on the server.
You encounter 8 when a DNS UPDATE prerequisite expected a certain RRset to exist (e.g., an MX record), but the zone does not contain it.
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.
ควรใช้อันไหนเมื่อไร
For 8 (NXRRSET): Create the missing RRset in the zone before retrying the update, or change the prerequisite to not require its existence. 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.