DNS 0 NOERROR vs 6 YXDOMAIN
Both DNS 0 (NOERROR) and 6 (YXDOMAIN) 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, 6 means that name Exists when it should not. Used in dynamic updates to indicate a name that should not exist already has records.
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
Name Exists when it should not. Used in dynamic updates to indicate a name that should not exist already has records.
เมื่อคุณพบเห็น
A DNS UPDATE prerequisite check failed because the domain name already exists when the update expected it to be absent.
วิธีแก้ไข
Review your dynamic update prerequisites. If you expect to create a new name, remove the existing records first or change the prerequisite to allow existing names.
ความแตกต่างหลัก
DNS 0: No error condition. The query completed successfully and the response contains the requested data.
DNS 6: Name Exists when it should not. Used in dynamic updates to indicate a name that should not exist already has records.
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 6 when a DNS UPDATE prerequisite check failed because the domain name already exists when the update expected it to be absent.
ควรใช้อันไหนเมื่อไร
For 0 (NOERROR): No fix needed. RCODE 0 means the DNS lookup succeeded as expected. For 6 (YXDOMAIN): Review your dynamic update prerequisites. If you expect to create a new name, remove the existing records first or change the prerequisite to allow existing names.