Result code returned in a DNS response.
property RCode: Word;
RCode is a Word property that represents the result code returned by a DNS server as part of a response to a DNS query. RCode may contain one of the following values and associated meanings:
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Value |
Meaning |
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0 |
No error condition. |
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1 |
Query Format error. The name server was unable to interpret the query. |
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2 |
Server failure. The name server was unable to process this query due to a problem with the name server. |
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3 |
Name Error. Meaningful only for responses from an authoritative name server, this code signifies that the domain name referenced in the query does not exist. |
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4 |
Not Implemented. The name server does not support the requested kind of query. |
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5 |
Operation Refused. The name server refuses to perform the specified operation for policy reasons. For example, a name server may not wish to provide the information to the particular requester, or a name server may not wish to perform a particular operation (e.g., zone transfer) for particular data. |
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6 |
Reserved for future use. |
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7 |
Reserved for future use. |
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8 |
Reserved for future use. |
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9 |
Reserved for future use. |
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10 |
Reserved for future use. |
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11 |
Reserved for future use. |
|
12 |
Reserved for future use. |
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13 |
Reserved for future use. |
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14 |
Reserved for future use. |
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15 |
Reserved for future use. |
RCode is represented in a DNS header as a 4-bit field. Changing the value of RCode ensures that the appropriate bit field is updated in the DNS header for the message packet.
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Copyright © 1993-2006, Chad Z. Hower (aka Kudzu) and the Indy Pit Crew. All rights reserved.
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Pascal