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DNS fields

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DNS fields

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DNS-specific event fields.

dns.id

type: long

The DNS packet identifier assigned by the program that generated the query. The identifier is copied to the response.

dns.op_code

example: QUERY

The DNS operation code that specifies the kind of query in the message. This value is set by the originator of a query and copied into the response.

dns.flags.authoritative

type: boolean

A DNS flag specifying that the responding server is an authority for the domain name used in the question.

dns.flags.recursion_available

type: boolean

A DNS flag specifying whether recursive query support is available in the name server.

dns.flags.recursion_desired

type: boolean

A DNS flag specifying that the client directs the server to pursue a query recursively. Recursive query support is optional.

dns.flags.authentic_data

type: boolean

A DNS flag specifying that the recursive server considers the response authentic.

dns.flags.checking_disabled

type: boolean

A DNS flag specifying that the client disables the server signature validation of the query.

dns.flags.truncated_response

type: boolean

A DNS flag specifying that only the first 512 bytes of the reply were returned.

dns.response_code

example: NOERROR

The DNS status code.

dns.question.name

example: www.google.com.

The domain name being queried. If the name field contains non-printable characters (below 32 or above 126), then those characters are represented as escaped base 10 integers (\DDD). Back slashes and quotes are escaped. Tabs, carriage returns, and line feeds are converted to \t, \r, and \n respectively.

dns.question.type

example: AAAA

The type of records being queried.

dns.question.class

example: IN

The class of of records being queried.

dns.question.etld_plus_one

example: amazon.co.uk.

The effective top-level domain (eTLD) plus one more label. For example, the eTLD+1 for "foo.bar.golang.org." is "golang.org.". The data for determining the eTLD comes from an embedded copy of the data from http://publicsuffix.org.

dns.answers

type: object

An array containing a dictionary about each answer section returned by the server.

dns.answers_count

type: long

The number of resource records contained in the dns.answers field.

dns.answers.name

example: example.com.

The domain name to which this resource record pertains.

dns.answers.type

example: MX

The type of data contained in this resource record.

dns.answers.class

example: IN

The class of DNS data contained in this resource record.

dns.answers.ttl

type: long

The time interval in seconds that this resource record may be cached before it should be discarded. Zero values mean that the data should not be cached.

dns.answers.data

The data describing the resource. The meaning of this data depends on the type and class of the resource record.

dns.authorities

type: object

An array containing a dictionary for each authority section from the answer.

dns.authorities_count

type: long

The number of resource records contained in the dns.authorities field. The dns.authorities field may or may not be included depending on the configuration of Packetbeat.

dns.authorities.name

example: example.com.

The domain name to which this resource record pertains.

dns.authorities.type

example: NS

The type of data contained in this resource record.

dns.authorities.class

example: IN

The class of DNS data contained in this resource record.

dns.additionals

type: object

An array containing a dictionary for each additional section from the answer.

dns.additionals_count

type: long

The number of resource records contained in the dns.additionals field. The dns.additionals field may or may not be included depending on the configuration of Packetbeat.

dns.additionals.name

example: example.com.

The domain name to which this resource record pertains.

dns.additionals.type

example: NS

The type of data contained in this resource record.

dns.additionals.class

example: IN

The class of DNS data contained in this resource record.

dns.additionals.ttl

type: long

The time interval in seconds that this resource record may be cached before it should be discarded. Zero values mean that the data should not be cached.

dns.additionals.data

The data describing the resource. The meaning of this data depends on the type and class of the resource record.

dns.opt.version

example: 0

The EDNS version.

dns.opt.do

type: boolean

If set, the transaction uses DNSSEC.

dns.opt.ext_rcode

example: BADVERS

Extended response code field.

dns.opt.udp_size

type: long

Requestor’s UDP payload size (in bytes).

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