DNS: Difference between revisions
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1 Format Error |
1 Format Error |
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2 Server Failure |
2 Server Failure |
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3 Name Error Name specified in query does not exist in domain |
3 Name Error Name specified in query does not exist in domain. |
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This code can be used by Authoritative Server for a zone (as it knows all objects & subdomains) |
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implements negative caching. |
Or by a caching server that implements negative caching. |
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4 Not Implemented Type of Query not supported by server. |
4 Not Implemented Type of Query not supported by server. |
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5 Refused Server refused to process the query, generally for policy reasons - operations such as Zone Transfer are restricted, Server will honor Zone Transfer only from certain devices. |
5 Refused Server refused to process the query, generally for policy reasons - operations such as Zone Transfer are restricted, Server will honor Zone Transfer only from certain devices. |