DNS

DNS 0 NOERROR vs 5 REFUSED

Both DNS 0 (NOERROR) and 5 (REFUSED) 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, 5 means that query refused. The name server refuses to perform the requested operation for policy reasons.

विवरण

No error condition. The query completed successfully and the response contains the requested data.

जब आप इसे देखें

This is the normal, successful response to any DNS query — the name was resolved and the answer section contains the requested records.

कैसे ठीक करें

No fix needed. RCODE 0 means the DNS lookup succeeded as expected.

विवरण

Query refused. The name server refuses to perform the requested operation for policy reasons.

जब आप इसे देखें

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.

कैसे ठीक करें

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.

मुख्य अंतर

1.

DNS 0: No error condition. The query completed successfully and the response contains the requested data.

2.

DNS 5: Query refused. The name server refuses to perform the requested operation for policy reasons.

3.

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.

4.

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.

कब किसका उपयोग करें

For 0 (NOERROR): No fix needed. RCODE 0 means the DNS lookup succeeded as expected. 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.

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