dns-rcodes

Maps easy to remember names to DNS RCODE (response code) values.

Usage

var rcodes = require('dns-rcodes');
 
// Get the rcode for "No Error"
var noErrorCode = rcodes.NoError;
 
// How about if the lookup is "Refused"?
var refusedCode = rcodes.Refused;
 
// Doing TSIG? We got you...
var badSignatureCode = rcodes.BadSignature;

RCODEs

Below is a list of exposed RCODEs organized by RFC.

RFC1035

RCODE	Name	Description
0	NoError	No error condition.
1	FormatError	The name server was unable to interpret the query.
2	ServerFailure	The name server was unable to process this query due to a problem with the name server.
3	NameError	Meaningful only for responses from an authoritative name server, this code signifies that the domain name referenced in the query does not exist.
4	NotImplemented	The name server does not support the requested kind of query.
5	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.

RFC2136

RCODE	Name	Description
6	YXDomain	Some name that ought not to exist, does exist.
7	YXRRSet	Some RRset that ought not to exist, does exist.
8	NXRRSet	Some RRset that ought to exist, does not exist.
9	NotAuth	The server is not authoritative for the zone named in the Zone Section.
10	NotZone	A name used in the Prerequisite or Update Section is not within the zone denoted by the Zone Section.

RFC6891

RCODE	Name	Description
16	BadVersion	Requestor provided a version option not compatible with the server.

RFC2845

RCODE	Name	Description
16	BadSignature	TSIG Signature Failure.
17	BadKey	Key not recognized.
18	BadTime	Signature out of time window.

RFC2930

RCODE	Name	Description
19	BadMode	Incorrect TKEY mode.
20	BadName	Duplicate TKEY name.
21	BadAlgorithm	Algorithm not supported.

RFC4635

RCODE	Name	Description
22	BadTruncation	Bad truncation.