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fields.yml
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fields.yml
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# WARNING! Do not edit this file directly, it was generated by the ECS project,
# based on ECS version 1.2.0.
# Please visit https://github.com/elastic/ecs to suggest changes to ECS fields.
- key: ecs
title: ECS
description: ECS Fields.
fields:
- name: '@timestamp'
level: core
required: true
type: date
description: 'Date/time when the event originated.
This is the date/time extracted from the event, typically representing when
the event was generated by the source.
If the event source has no original timestamp, this value is typically populated
by the first time the event was received by the pipeline.
Required field for all events.'
example: '2016-05-23T08:05:34.853Z'
- name: labels
level: core
type: object
object_type: keyword
description: 'Custom key/value pairs.
Can be used to add meta information to events. Should not contain nested objects.
All values are stored as keyword.
Example: `docker` and `k8s` labels.'
example:
application: foo-bar
env: production
- name: message
level: core
type: text
description: 'For log events the message field contains the log message, optimized
for viewing in a log viewer.
For structured logs without an original message field, other fields can be concatenated
to form a human-readable summary of the event.
If multiple messages exist, they can be combined into one message.'
example: Hello World
- name: tags
level: core
type: keyword
ignore_above: 1024
description: List of keywords used to tag each event.
example: '["production", "env2"]'
- name: agent
title: Agent
group: 2
description: 'The agent fields contain the data about the software entity, if
any, that collects, detects, or observes events on a host, or takes measurements
on a host.
Examples include Beats. Agents may also run on observers. ECS agent.* fields
shall be populated with details of the agent running on the host or observer
where the event happened or the measurement was taken.'
footnote: 'Examples: In the case of Beats for logs, the agent.name is filebeat.
For APM, it is the agent running in the app/service. The agent information does
not change if data is sent through queuing systems like Kafka, Redis, or processing
systems such as Logstash or APM Server.'
type: group
fields:
- name: ephemeral_id
level: extended
type: keyword
ignore_above: 1024
description: 'Ephemeral identifier of this agent (if one exists).
This id normally changes across restarts, but `agent.id` does not.'
example: 8a4f500f
- name: id
level: core
type: keyword
ignore_above: 1024
description: 'Unique identifier of this agent (if one exists).
Example: For Beats this would be beat.id.'
example: 8a4f500d
- name: name
level: core
type: keyword
ignore_above: 1024
description: 'Custom name of the agent.
This is a name that can be given to an agent. This can be helpful if for example
two Filebeat instances are running on the same host but a human readable separation
is needed on which Filebeat instance data is coming from.
If no name is given, the name is often left empty.'
example: foo
- name: type
level: core
type: keyword
ignore_above: 1024
description: 'Type of the agent.
The agent type stays always the same and should be given by the agent used.
In case of Filebeat the agent would always be Filebeat also if two Filebeat
instances are run on the same machine.'
example: filebeat
- name: version
level: core
type: keyword
ignore_above: 1024
description: Version of the agent.
example: 6.0.0-rc2
- name: as
title: Autonomous System
group: 2
description: An autonomous system (AS) is a collection of connected Internet Protocol
(IP) routing prefixes under the control of one or more network operators on
behalf of a single administrative entity or domain that presents a common, clearly
defined routing policy to the internet.
type: group
fields:
- name: number
level: extended
type: long
description: Unique number allocated to the autonomous system. The autonomous
system number (ASN) uniquely identifies each network on the Internet.
example: 15169
- name: organization.name
level: extended
type: keyword
ignore_above: 1024
description: Organization name.
example: Google LLC
- name: client
title: Client
group: 2
description: 'A client is defined as the initiator of a network connection for
events regarding sessions, connections, or bidirectional flow records.
For TCP events, the client is the initiator of the TCP connection that sends
the SYN packet(s). For other protocols, the client is generally the initiator
or requestor in the network transaction. Some systems use the term "originator"
to refer the client in TCP connections. The client fields describe details about
the system acting as the client in the network event. Client fields are usually
populated in conjunction with server fields. Client fields are generally not
populated for packet-level events.
Client / server representations can add semantic context to an exchange, which
is helpful to visualize the data in certain situations. If your context falls
in that category, you should still ensure that source and destination are filled
appropriately.'
type: group
fields:
- name: address
level: extended
type: keyword
ignore_above: 1024
description: 'Some event client addresses are defined ambiguously. The event
will sometimes list an IP, a domain or a unix socket. You should always store
the raw address in the `.address` field.
Then it should be duplicated to `.ip` or `.domain`, depending on which one
it is.'
- name: as.number
level: extended
type: long
description: Unique number allocated to the autonomous system. The autonomous
system number (ASN) uniquely identifies each network on the Internet.
example: 15169
- name: as.organization.name
level: extended
type: keyword
ignore_above: 1024
description: Organization name.
example: Google LLC
- name: bytes
level: core
type: long
format: bytes
description: Bytes sent from the client to the server.
example: 184
- name: domain
level: core
type: keyword
ignore_above: 1024
description: Client domain.
- name: geo.city_name
level: core
type: keyword
ignore_above: 1024
description: City name.
example: Montreal
- name: geo.continent_name
level: core
type: keyword
ignore_above: 1024
description: Name of the continent.
example: North America
- name: geo.country_iso_code
level: core
type: keyword
ignore_above: 1024
description: Country ISO code.
example: CA
- name: geo.country_name
level: core
type: keyword
ignore_above: 1024
description: Country name.
example: Canada
- name: geo.location
level: core
type: geo_point
description: Longitude and latitude.
example: '{ "lon": -73.614830, "lat": 45.505918 }'
- name: geo.name
level: extended
type: keyword
ignore_above: 1024
description: 'User-defined description of a location, at the level of granularity
they care about.
Could be the name of their data centers, the floor number, if this describes
a local physical entity, city names.
Not typically used in automated geolocation.'
example: boston-dc
- name: geo.region_iso_code
level: core
type: keyword
ignore_above: 1024
description: Region ISO code.
example: CA-QC
- name: geo.region_name
level: core
type: keyword
ignore_above: 1024
description: Region name.
example: Quebec
- name: ip
level: core
type: ip
description: 'IP address of the client.
Can be one or multiple IPv4 or IPv6 addresses.'
- name: mac
level: core
type: keyword
ignore_above: 1024
description: MAC address of the client.
- name: nat.ip
level: extended
type: ip
description: 'Translated IP of source based NAT sessions (e.g. internal client
to internet).
Typically connections traversing load balancers, firewalls, or routers.'
- name: nat.port
level: extended
type: long
format: string
description: 'Translated port of source based NAT sessions (e.g. internal client
to internet).
Typically connections traversing load balancers, firewalls, or routers.'
- name: packets
level: core
type: long
description: Packets sent from the client to the server.
example: 12
- name: port
level: core
type: long
format: string
description: Port of the client.
- name: registered_domain
level: extended
type: keyword
ignore_above: 1024
description: 'The highest registered client domain, stripped of the subdomain.
For example, the registered domain for "foo.google.com" is "google.com".
This value can be determined precisely with a list like the public suffix
list (http://publicsuffix.org). Trying to approximate this by simply taking
the last two labels will not work well for TLDs such as "co.uk".'
example: google.com
- name: top_level_domain
level: extended
type: keyword
ignore_above: 1024
description: 'The effective top level domain (eTLD), also known as the domain
suffix, is the last part of the domain name. For example, the top level domain
for google.com is "com".
This value can be determined precisely with a list like the public suffix
list (http://publicsuffix.org). Trying to approximate this by simply taking
the last label will not work well for effective TLDs such as "co.uk".'
example: co.uk
- name: user.domain
level: extended
type: keyword
ignore_above: 1024
description: 'Name of the directory the user is a member of.
For example, an LDAP or Active Directory domain name.'
- name: user.email
level: extended
type: keyword
ignore_above: 1024
description: User email address.
- name: user.full_name
level: extended
type: keyword
ignore_above: 1024
description: User's full name, if available.
example: Albert Einstein
- name: user.group.domain
level: extended
type: keyword
ignore_above: 1024
description: 'Name of the directory the group is a member of.
For example, an LDAP or Active Directory domain name.'
- name: user.group.id
level: extended
type: keyword
ignore_above: 1024
description: Unique identifier for the group on the system/platform.
- name: user.group.name
level: extended
type: keyword
ignore_above: 1024
description: Name of the group.
- name: user.hash
level: extended
type: keyword
ignore_above: 1024
description: 'Unique user hash to correlate information for a user in anonymized
form.
Useful if `user.id` or `user.name` contain confidential information and cannot
be used.'
- name: user.id
level: core
type: keyword
ignore_above: 1024
description: One or multiple unique identifiers of the user.
- name: user.name
level: core
type: keyword
ignore_above: 1024
description: Short name or login of the user.
example: albert
- name: cloud
title: Cloud
group: 2
description: Fields related to the cloud or infrastructure the events are coming
from.
footnote: 'Examples: If Metricbeat is running on an EC2 host and fetches data
from its host, the cloud info contains the data about this machine. If Metricbeat
runs on a remote machine outside the cloud and fetches data from a service running
in the cloud, the field contains cloud data from the machine the service is
running on.'
type: group
fields:
- name: account.id
level: extended
type: keyword
ignore_above: 1024
description: 'The cloud account or organization id used to identify different
entities in a multi-tenant environment.
Examples: AWS account id, Google Cloud ORG Id, or other unique identifier.'
example: 666777888999
- name: availability_zone
level: extended
type: keyword
ignore_above: 1024
description: Availability zone in which this host is running.
example: us-east-1c
- name: instance.id
level: extended
type: keyword
ignore_above: 1024
description: Instance ID of the host machine.
example: i-1234567890abcdef0
- name: instance.name
level: extended
type: keyword
ignore_above: 1024
description: Instance name of the host machine.
- name: machine.type
level: extended
type: keyword
ignore_above: 1024
description: Machine type of the host machine.
example: t2.medium
- name: provider
level: extended
type: keyword
ignore_above: 1024
description: Name of the cloud provider. Example values are aws, azure, gcp,
or digitalocean.
example: aws
- name: region
level: extended
type: keyword
ignore_above: 1024
description: Region in which this host is running.
example: us-east-1
- name: container
title: Container
group: 2
description: 'Container fields are used for meta information about the specific
container that is the source of information.
These fields help correlate data based containers from any runtime.'
type: group
fields:
- name: id
level: core
type: keyword
ignore_above: 1024
description: Unique container id.
- name: image.name
level: extended
type: keyword
ignore_above: 1024
description: Name of the image the container was built on.
- name: image.tag
level: extended
type: keyword
ignore_above: 1024
description: Container image tag.
- name: labels
level: extended
type: object
object_type: keyword
description: Image labels.
- name: name
level: extended
type: keyword
ignore_above: 1024
description: Container name.
- name: runtime
level: extended
type: keyword
ignore_above: 1024
description: Runtime managing this container.
example: docker
- name: destination
title: Destination
group: 2
description: 'Destination fields describe details about the destination of a packet/event.
Destination fields are usually populated in conjunction with source fields.'
type: group
fields:
- name: address
level: extended
type: keyword
ignore_above: 1024
description: 'Some event destination addresses are defined ambiguously. The
event will sometimes list an IP, a domain or a unix socket. You should always
store the raw address in the `.address` field.
Then it should be duplicated to `.ip` or `.domain`, depending on which one
it is.'
- name: as.number
level: extended
type: long
description: Unique number allocated to the autonomous system. The autonomous
system number (ASN) uniquely identifies each network on the Internet.
example: 15169
- name: as.organization.name
level: extended
type: keyword
ignore_above: 1024
description: Organization name.
example: Google LLC
- name: bytes
level: core
type: long
format: bytes
description: Bytes sent from the destination to the source.
example: 184
- name: domain
level: core
type: keyword
ignore_above: 1024
description: Destination domain.
- name: geo.city_name
level: core
type: keyword
ignore_above: 1024
description: City name.
example: Montreal
- name: geo.continent_name
level: core
type: keyword
ignore_above: 1024
description: Name of the continent.
example: North America
- name: geo.country_iso_code
level: core
type: keyword
ignore_above: 1024
description: Country ISO code.
example: CA
- name: geo.country_name
level: core
type: keyword
ignore_above: 1024
description: Country name.
example: Canada
- name: geo.location
level: core
type: geo_point
description: Longitude and latitude.
example: '{ "lon": -73.614830, "lat": 45.505918 }'
- name: geo.name
level: extended
type: keyword
ignore_above: 1024
description: 'User-defined description of a location, at the level of granularity
they care about.
Could be the name of their data centers, the floor number, if this describes
a local physical entity, city names.
Not typically used in automated geolocation.'
example: boston-dc
- name: geo.region_iso_code
level: core
type: keyword
ignore_above: 1024
description: Region ISO code.
example: CA-QC
- name: geo.region_name
level: core
type: keyword
ignore_above: 1024
description: Region name.
example: Quebec
- name: ip
level: core
type: ip
description: 'IP address of the destination.
Can be one or multiple IPv4 or IPv6 addresses.'
- name: mac
level: core
type: keyword
ignore_above: 1024
description: MAC address of the destination.
- name: nat.ip
level: extended
type: ip
description: 'Translated ip of destination based NAT sessions (e.g. internet
to private DMZ)
Typically used with load balancers, firewalls, or routers.'
- name: nat.port
level: extended
type: long
format: string
description: 'Port the source session is translated to by NAT Device.
Typically used with load balancers, firewalls, or routers.'
- name: packets
level: core
type: long
description: Packets sent from the destination to the source.
example: 12
- name: port
level: core
type: long
format: string
description: Port of the destination.
- name: registered_domain
level: extended
type: keyword
ignore_above: 1024
description: 'The highest registered destination domain, stripped of the subdomain.
For example, the registered domain for "foo.google.com" is "google.com".
This value can be determined precisely with a list like the public suffix
list (http://publicsuffix.org). Trying to approximate this by simply taking
the last two labels will not work well for TLDs such as "co.uk".'
example: google.com
- name: top_level_domain
level: extended
type: keyword
ignore_above: 1024
description: 'The effective top level domain (eTLD), also known as the domain
suffix, is the last part of the domain name. For example, the top level domain
for google.com is "com".
This value can be determined precisely with a list like the public suffix
list (http://publicsuffix.org). Trying to approximate this by simply taking
the last label will not work well for effective TLDs such as "co.uk".'
example: co.uk
- name: user.domain
level: extended
type: keyword
ignore_above: 1024
description: 'Name of the directory the user is a member of.
For example, an LDAP or Active Directory domain name.'
- name: user.email
level: extended
type: keyword
ignore_above: 1024
description: User email address.
- name: user.full_name
level: extended
type: keyword
ignore_above: 1024
description: User's full name, if available.
example: Albert Einstein
- name: user.group.domain
level: extended
type: keyword
ignore_above: 1024
description: 'Name of the directory the group is a member of.
For example, an LDAP or Active Directory domain name.'
- name: user.group.id
level: extended
type: keyword
ignore_above: 1024
description: Unique identifier for the group on the system/platform.
- name: user.group.name
level: extended
type: keyword
ignore_above: 1024
description: Name of the group.
- name: user.hash
level: extended
type: keyword
ignore_above: 1024
description: 'Unique user hash to correlate information for a user in anonymized
form.
Useful if `user.id` or `user.name` contain confidential information and cannot
be used.'
- name: user.id
level: core
type: keyword
ignore_above: 1024
description: One or multiple unique identifiers of the user.
- name: user.name
level: core
type: keyword
ignore_above: 1024
description: Short name or login of the user.
example: albert
- name: dns
title: DNS
group: 2
description: 'Fields describing DNS queries and answers.
DNS events should either represent a single DNS query prior to getting answers
(`dns.type:query`) or they should represent a full exchange and contain the
query details as well as all of the answers that were provided for this query
(`dns.type:answer`).'
type: group
fields:
- name: answers
level: extended
type: object
object_type: keyword
description: 'An array containing an object for each answer section returned
by the server.
The main keys that should be present in these objects are defined by ECS.
Records that have more information may contain more keys than what ECS defines.
Not all DNS data sources give all details about DNS answers. At minimum, answer
objects must contain the `data` key. If more information is available, map
as much of it to ECS as possible, and add any additional fields to the answer
objects as custom fields.'
- name: answers.class
level: extended
type: keyword
ignore_above: 1024
description: The class of DNS data contained in this resource record.
example: IN
- name: answers.data
level: extended
type: keyword
ignore_above: 1024
description: 'The data describing the resource.
The meaning of this data depends on the type and class of the resource record.'
example: 10.10.10.10
- name: answers.name
level: extended
type: keyword
ignore_above: 1024
description: 'The domain name to which this resource record pertains.
If a chain of CNAME is being resolved, each answer''s `name` should be the
one that corresponds with the answer''s `data`. It should not simply be the
original `question.name` repeated.'
example: www.google.com
- name: answers.ttl
level: extended
type: long
description: 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.
example: 180
- name: answers.type
level: extended
type: keyword
ignore_above: 1024
description: The type of data contained in this resource record.
example: CNAME
- name: header_flags
level: extended
type: keyword
ignore_above: 1024
description: 'Array of 2 letter DNS header flags.
Expected values are: AA, TC, RD, RA, AD, CD, DO.'
example:
- RD
- RA
- name: id
level: extended
type: keyword
ignore_above: 1024
description: The DNS packet identifier assigned by the program that generated
the query. The identifier is copied to the response.
example: 62111
- name: op_code
level: extended
type: keyword
ignore_above: 1024
description: 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.
example: QUERY
- name: question.class
level: extended
type: keyword
ignore_above: 1024
description: The class of of records being queried.
example: IN
- name: question.name
level: extended
type: keyword
ignore_above: 1024
description: 'The name being queried.
If the name field contains non-printable characters (below 32 or above 126),
those characters should be represented as escaped base 10 integers (\DDD).
Back slashes and quotes should be escaped. Tabs, carriage returns, and line
feeds should be converted to \t, \r, and \n respectively.'
example: www.google.com
- name: question.registered_domain
level: extended
type: keyword
ignore_above: 1024
description: 'The highest registered domain, stripped of the subdomain.
For example, the registered domain for "foo.google.com" is "google.com".
This value can be determined precisely with a list like the public suffix
list (http://publicsuffix.org). Trying to approximate this by simply taking
the last two labels will not work well for TLDs such as "co.uk".'
example: google.com
- name: question.subdomain
level: extended
type: keyword
ignore_above: 1024
description: 'The subdomain is all of the labels under the registered_domain.
If the domain has multiple levels of subdomain, such as "sub2.sub1.example.com",
the subdomain field should contain "sub2.sub1", with no trailing period.'
example: www
- name: question.top_level_domain
level: extended
type: keyword
ignore_above: 1024
description: 'The effective top level domain (eTLD), also known as the domain
suffix, is the last part of the domain name. For example, the top level domain
for google.com is "com".
This value can be determined precisely with a list like the public suffix
list (http://publicsuffix.org). Trying to approximate this by simply taking
the last label will not work well for effective TLDs such as "co.uk".'
example: co.uk
- name: question.type
level: extended
type: keyword
ignore_above: 1024
description: The type of record being queried.
example: AAAA
- name: resolved_ip
level: extended
type: ip
description: 'Array containing all IPs seen in `answers.data`.
The `answers` array can be difficult to use, because of the variety of data
formats it can contain. Extracting all IP addresses seen in there to `dns.resolved_ip`
makes it possible to index them as IP addresses, and makes them easier to
visualize and query for.'
example:
- 10.10.10.10
- 10.10.10.11
- name: response_code
level: extended
type: keyword
ignore_above: 1024
description: The DNS response code.
example: NOERROR
- name: type
level: extended
type: keyword
ignore_above: 1024
description: 'The type of DNS event captured, query or answer.
If your source of DNS events only gives you DNS queries, you should only create
dns events of type `dns.type:query`.
If your source of DNS events gives you answers as well, you should create
one event per query (optionally as soon as the query is seen). And a second
event containing all query details as well as an array of answers.'
example: answer
- name: ecs
title: ECS
group: 2
description: Meta-information specific to ECS.
type: group
fields:
- name: version
level: core
required: true
type: keyword
ignore_above: 1024
description: 'ECS version this event conforms to. `ecs.version` is a required
field and must exist in all events.
When querying across multiple indices -- which may conform to slightly different
ECS versions -- this field lets integrations adjust to the schema version
of the events.'
example: 1.0.0
- name: error
title: Error
group: 2
description: 'These fields can represent errors of any kind.
Use them for errors that happen while fetching events or in cases where the
event itself contains an error.'
type: group
fields:
- name: code
level: core
type: keyword
ignore_above: 1024
description: Error code describing the error.
- name: id
level: core
type: keyword
ignore_above: 1024
description: Unique identifier for the error.
- name: message
level: core
type: text
description: Error message.
- name: stack_trace
level: extended
type: keyword
ignore_above: 1024
description: The stack trace of this error in plain text.
- name: type
level: extended
type: keyword
ignore_above: 1024
description: The type of the error, for example the class name of the exception.
example: java.lang.NullPointerException
- name: event
title: Event
group: 2
description: 'The event fields are used for context information about the log
or metric event itself.
A log is defined as an event containing details of something that happened.
Log events must include the time at which the thing happened. Examples of log
events include a process starting on a host, a network packet being sent from
a source to a destination, or a network connection between a client and a server
being initiated or closed. A metric is defined as an event containing one or
more numerical or categorical measurements and the time at which the measurement
was taken. Examples of metric events include memory pressure measured on a host,
or vulnerabilities measured on a scanned host.'
type: group
fields:
- name: action
level: core
type: keyword
ignore_above: 1024
description: 'The action captured by the event.
This describes the information in the event. It is more specific than `event.category`.
Examples are `group-add`, `process-started`, `file-created`. The value is
normally defined by the implementer.'
example: user-password-change
- name: category
level: core
type: keyword
ignore_above: 1024
description: 'Event category.
This contains high-level information about the contents of the event. It is
more generic than `event.action`, in the sense that typically a category contains
multiple actions. Warning: In future versions of ECS, we plan to provide a
list of acceptable values for this field, please use with caution.'
example: user-management
- name: code
level: extended
type: keyword
ignore_above: 1024
description: 'Identification code for this event, if one exists.
Some event sources use event codes to identify messages unambiguously, regardless
of message language or wording adjustments over time. An example of this is
the Windows Event ID.'
example: 4648
- name: created
level: core
type: date
description: 'event.created contains the date/time when the event was first
read by an agent, or by your pipeline.
This field is distinct from @timestamp in that @timestamp typically contain
the time extracted from the original event.
In most situations, these two timestamps will be slightly different. The difference
can be used to calculate the delay between your source generating an event,
and the time when your agent first processed it. This can be used to monitor
your agent''s or pipeline''s ability to keep up with your event source.
In case the two timestamps are identical, @timestamp should be used.'
- name: dataset
level: core
type: keyword
ignore_above: 1024
description: 'Name of the dataset.
If an event source publishes more than one type of log or events (e.g. access
log, error log), the dataset is used to specify which one the event comes
from.
It''s recommended but not required to start the dataset name with the module
name, followed by a dot, then the dataset name.'
example: apache.access
- name: duration
level: core
type: long
format: duration
input_format: nanoseconds
output_format: asMilliseconds
output_precision: 1
description: 'Duration of the event in nanoseconds.
If event.start and event.end are known this value should be the difference
between the end and start time.'
- name: end
level: extended
type: date
description: event.end contains the date when the event ended or when the activity
was last observed.
- name: hash
level: extended
type: keyword
ignore_above: 1024
description: Hash (perhaps logstash fingerprint) of raw field to be able to
demonstrate log integrity.
example: 123456789012345678901234567890ABCD
- name: id
level: core
type: keyword
ignore_above: 1024
description: Unique ID to describe the event.
example: 8a4f500d
- name: kind
level: extended
type: keyword
ignore_above: 1024
description: 'The kind of the event.
This gives information about what type of information the event contains,
without being specific to the contents of the event. Examples are `event`,
`state`, `alarm`. Warning: In future versions of ECS, we plan to provide a
list of acceptable values for this field, please use with caution.'
example: state