DNS 0 NOERROR vs 8 NXRRSET
Both DNS 0 (NOERROR) and 8 (NXRRSET) belong to the DNS Response Codes (RCODEs) category. 0 indicates that no error condition. The query completed successfully and the response contains the requested data. Meanwhile, 8 means that rR Set that should exist does not. A required resource record set is missing from the zone.
คำอธิบาย
No error condition. The query completed successfully and the response contains the requested data.
เมื่อคุณพบเห็น
This is the normal, successful response to any DNS query — the name was resolved and the answer section contains the requested records.
วิธีแก้ไข
No fix needed. RCODE 0 means the DNS lookup succeeded as expected.
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.
ความแตกต่างหลัก
DNS 0: No error condition. The query completed successfully and the response contains the requested data.
DNS 8: RR Set that should exist does not. A required resource record set is missing from the zone.
You encounter 0 when this is the normal, successful response to any DNS query — the name was resolved and the answer section contains the requested records.
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.
ควรใช้อันไหนเมื่อไร
For 0 (NOERROR): No fix needed. RCODE 0 means the DNS lookup succeeded as expected. For 8 (NXRRSET): Create the missing RRset in the zone before retrying the update, or change the prerequisite to not require its existence.