What is an Elastic integration?

This integration is powered by Elastic Agent. Elastic Agent is a single, unified way to add monitoring for logs, metrics, and other types of data to a host. It can also protect hosts from security threats, query data from operating systems, forward data from remote services or hardware, and more. Refer to our documentation for a detailed comparison between Beats and Elastic Agent.

Prefer to use Beats for this use case? See Filebeat modules for logs or Metricbeat modules for metrics.

This is an integration to parse certain logs from pfSense and OPNsense firewalls. It parses logs received over the network via syslog (UDP/TCP/TLS). pfSense natively only supports UDP. OPNsense supports all 3 transports.

Currently the integration supports parsing the Firewall, Unbound, DHCP Daemon, OpenVPN, IPsec, HAProxy, Squid, and PHP-FPM (Authentication) logs.
All other events will be dropped. The HAProxy logs are setup to be compatible with the dashboards from the HAProxy integration. Install the HAPrxoy integration assets to use them.

pfSense Setup

  1. Navigate to Status -> System Logs, then click on Settings
  2. At the bottom check Enable Remote Logging
  3. (Optional) Select a specific interface to use for forwarding
  4. Input the agent IP address and port as set via the integration config into the field Remote log servers (e.g. 192.168.100.50:5140)
  5. Under Remote Syslog Contents select what logs to forward to the agent
    • Select Everything to forward all logs to the agent or select the individual services to forward. Any log entry not in the list above will be dropped. This will cause additional data to be sent to the agent and Elasticsearch. The firewall, VPN, DHCP, DNS, and Authentication (PHP-FPM) logs are able to be individually selected. In order to collect HAProxy and Squid or other "package" logs, the Everything option must be selected.

OPNsense Setup

  1. Navigate to System -> Settings -> Logging/Targets
  2. Add a new Logging/Target (Click the plus icon)
    • Transport = UDP or TCP or TLS
    • Applications = Select a list of applications to send to remote syslog. Leave empty for all.
    • Levels = Nothing Selected
    • Facilities = Nothing Selected
    • Hostname = IP of Elastic agent as configured in the integration config
    • Port = Port of Elastic agent as configured in the integration config
    • Certificate = Client certificate to use (when selecting a tls transport type)
    • Description = Syslog to Elasticsearch
    • Click Save

The module is by default configured to run with the udp input on port 9001.

Important
The pfSense integration supports both the BSD logging format (used by pfSense by default and OPNsense) and the Syslog format (optional for pfSense). However the syslog format is recommended. It will provide the firewall hostname and timestamps with timezone information. When using the BSD format, the Timezone Offset config must be set when deploying the agent or else the timezone will default to the timezone of the agent. See https://<pfsense url>/status_logs_settings.php and https://docs.netgate.com/pfsense/en/latest/monitoring/logs/settings.html for more information.

A huge thanks to a3ilson for the https://github.com/pfelk/pfelk repo, which is the foundation for the majority of the grok patterns and dashboards in this integration.

Logs

pfSense log

This is the pfSense log dataset.

An example event for log looks as following:

{
    "@timestamp": "2021-07-04T00:10:14.578Z",
    "agent": {
        "ephemeral_id": "6b82ecb8-3739-4d1c-aeca-3a62c5340c7f",
        "id": "c5c06c39-0b86-45ec-9ae3-c773f4562eaa",
        "name": "docker-fleet-agent",
        "type": "filebeat",
        "version": "8.3.2"
    },
    "data_stream": {
        "dataset": "pfsense.log",
        "namespace": "ep",
        "type": "logs"
    },
    "destination": {
        "address": "175.16.199.1",
        "geo": {
            "city_name": "Changchun",
            "continent_name": "Asia",
            "country_iso_code": "CN",
            "country_name": "China",
            "location": {
                "lat": 43.88,
                "lon": 125.3228
            },
            "region_iso_code": "CN-22",
            "region_name": "Jilin Sheng"
        },
        "ip": "175.16.199.1",
        "port": 853
    },
    "ecs": {
        "version": "8.5.0"
    },
    "elastic_agent": {
        "id": "c5c06c39-0b86-45ec-9ae3-c773f4562eaa",
        "snapshot": false,
        "version": "8.3.2"
    },
    "event": {
        "action": "block",
        "agent_id_status": "verified",
        "category": [
            "network"
        ],
        "dataset": "pfsense.log",
        "ingested": "2022-07-30T02:57:35Z",
        "kind": "event",
        "original": "\u003c134\u003e1 2021-07-03T19:10:14.578288-05:00 pfSense.example.com filterlog 72237 - - 146,,,1535324496,igb1.12,match,block,in,4,0x0,,63,32989,0,DF,6,tcp,60,10.170.12.50,175.16.199.1,49652,853,0,S,1818117648,,64240,,mss;sackOK;TS;nop;wscale",
        "provider": "filterlog",
        "reason": "match",
        "timezone": "-05:00",
        "type": [
            "connection",
            "denied"
        ]
    },
    "input": {
        "type": "tcp"
    },
    "log": {
        "source": {
            "address": "172.19.0.6:50688"
        },
        "syslog": {
            "priority": 134
        }
    },
    "message": "146,,,1535324496,igb1.12,match,block,in,4,0x0,,63,32989,0,DF,6,tcp,60,10.170.12.50,175.16.199.1,49652,853,0,S,1818117648,,64240,,mss;sackOK;TS;nop;wscale",
    "network": {
        "bytes": 60,
        "community_id": "1:pOXVyPJTFJI5seusI/UD6SwvBjg=",
        "direction": "inbound",
        "iana_number": "6",
        "transport": "tcp",
        "type": "ipv4"
    },
    "observer": {
        "ingress": {
            "interface": {
                "name": "igb1.12"
            },
            "vlan": {
                "id": "12"
            }
        },
        "name": "pfSense.example.com",
        "type": "firewall",
        "vendor": "netgate"
    },
    "pfsense": {
        "ip": {
            "flags": "DF",
            "id": 32989,
            "offset": 0,
            "tos": "0x0",
            "ttl": 63
        },
        "tcp": {
            "flags": "S",
            "length": 0,
            "options": [
                "mss",
                "sackOK",
                "TS",
                "nop",
                "wscale"
            ],
            "window": 64240
        }
    },
    "process": {
        "name": "filterlog",
        "pid": 72237
    },
    "related": {
        "ip": [
            "175.16.199.1",
            "10.170.12.50"
        ]
    },
    "rule": {
        "id": "1535324496"
    },
    "source": {
        "address": "10.170.12.50",
        "ip": "10.170.12.50",
        "port": 49652
    },
    "tags": [
        "preserve_original_event",
        "pfsense",
        "forwarded"
    ]
}

Exported fields

FieldDescriptionType
@timestamp
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.
date
client.address
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.
keyword
client.as.number
Unique number allocated to the autonomous system. The autonomous system number (ASN) uniquely identifies each network on the Internet.
long
client.as.organization.name
Organization name.
keyword
client.as.organization.name.text
Multi-field of client.as.organization.name.
match_only_text
client.bytes
Bytes sent from the client to the server.
long
client.domain
The domain name of the client system. This value may be a host name, a fully qualified domain name, or another host naming format. The value may derive from the original event or be added from enrichment.
keyword
client.geo.city_name
City name.
keyword
client.geo.continent_name
Name of the continent.
keyword
client.geo.country_iso_code
Country ISO code.
keyword
client.geo.country_name
Country name.
keyword
client.geo.location
Longitude and latitude.
geo_point
client.geo.region_iso_code
Region ISO code.
keyword
client.geo.region_name
Region name.
keyword
client.ip
IP address of the client (IPv4 or IPv6).
ip
client.mac
MAC address of the client. The notation format from RFC 7042 is suggested: Each octet (that is, 8-bit byte) is represented by two [uppercase] hexadecimal digits giving the value of the octet as an unsigned integer. Successive octets are separated by a hyphen.
keyword
client.port
Port of the client.
long
cloud.account.id
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.
keyword
cloud.availability_zone
Availability zone in which this host is running.
keyword
cloud.image.id
Image ID for the cloud instance.
keyword
cloud.instance.id
Instance ID of the host machine.
keyword
cloud.instance.name
Instance name of the host machine.
keyword
cloud.machine.type
Machine type of the host machine.
keyword
cloud.project.id
Name of the project in Google Cloud.
keyword
cloud.provider
Name of the cloud provider. Example values are aws, azure, gcp, or digitalocean.
keyword
cloud.region
Region in which this host is running.
keyword
container.id
Unique container id.
keyword
container.image.name
Name of the image the container was built on.
keyword
container.labels
Image labels.
object
container.name
Container name.
keyword
data_stream.dataset
Data stream dataset.
constant_keyword
data_stream.namespace
Data stream namespace.
constant_keyword
data_stream.type
Data stream type.
constant_keyword
destination.address
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.
keyword
destination.as.number
Unique number allocated to the autonomous system. The autonomous system number (ASN) uniquely identifies each network on the Internet.
long
destination.as.organization.name
Organization name.
keyword
destination.as.organization.name.text
Multi-field of destination.as.organization.name.
match_only_text
destination.bytes
Bytes sent from the destination to the source.
long
destination.geo.city_name
City name.
keyword
destination.geo.continent_name
Name of the continent.
keyword
destination.geo.country_iso_code
Country ISO code.
keyword
destination.geo.country_name
Country name.
keyword
destination.geo.location
Longitude and latitude.
geo_point
destination.geo.name
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.
keyword
destination.geo.region_iso_code
Region ISO code.
keyword
destination.geo.region_name
Region name.
keyword
destination.ip
IP address of the destination (IPv4 or IPv6).
ip
destination.mac
MAC address of the destination. The notation format from RFC 7042 is suggested: Each octet (that is, 8-bit byte) is represented by two [uppercase] hexadecimal digits giving the value of the octet as an unsigned integer. Successive octets are separated by a hyphen.
keyword
destination.port
Port of the destination.
long
dns.question.class
The class of records being queried.
keyword
dns.question.name
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.
keyword
dns.question.registered_domain
The highest registered domain, stripped of the subdomain. For example, the registered domain for "foo.example.com" is "example.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".
keyword
dns.question.subdomain
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.
keyword
dns.question.top_level_domain
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 example.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".
keyword
dns.question.type
The type of record being queried.
keyword
dns.type
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.
keyword
ecs.version
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.
keyword
error.message
Error message.
match_only_text
event.action
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.
keyword
event.category
This is one of four ECS Categorization Fields, and indicates the second level in the ECS category hierarchy. event.category represents the "big buckets" of ECS categories. For example, filtering on event.category:process yields all events relating to process activity. This field is closely related to event.type, which is used as a subcategory. This field is an array. This will allow proper categorization of some events that fall in multiple categories.
keyword
event.dataset
Event dataset
constant_keyword
event.duration
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.
long
event.id
Unique ID to describe the event.
keyword
event.ingested
Timestamp when an event arrived in the central data store. This is different from @timestamp, which is when the event originally occurred. It's also different from event.created, which is meant to capture the first time an agent saw the event. In normal conditions, assuming no tampering, the timestamps should chronologically look like this: @timestamp < event.created < event.ingested.
date
event.kind
This is one of four ECS Categorization Fields, and indicates the highest level in the ECS category hierarchy. event.kind gives high-level information about what type of information the event contains, without being specific to the contents of the event. For example, values of this field distinguish alert events from metric events. The value of this field can be used to inform how these kinds of events should be handled. They may warrant different retention, different access control, it may also help understand whether the data coming in at a regular interval or not.
keyword
event.module
Event module
constant_keyword
event.original
Raw text message of entire event. Used to demonstrate log integrity or where the full log message (before splitting it up in multiple parts) may be required, e.g. for reindex. This field is not indexed and doc_values are disabled. It cannot be searched, but it can be retrieved from _source. If users wish to override this and index this field, please see Field data types in the Elasticsearch Reference.
keyword
event.outcome
This is one of four ECS Categorization Fields, and indicates the lowest level in the ECS category hierarchy. event.outcome simply denotes whether the event represents a success or a failure from the perspective of the entity that produced the event. Note that when a single transaction is described in multiple events, each event may populate different values of event.outcome, according to their perspective. Also note that in the case of a compound event (a single event that contains multiple logical events), this field should be populated with the value that best captures the overall success or failure from the perspective of the event producer. Further note that not all events will have an associated outcome. For example, this field is generally not populated for metric events, events with event.type:info, or any events for which an outcome does not make logical sense.
keyword
event.provider
Source of the event. Event transports such as Syslog or the Windows Event Log typically mention the source of an event. It can be the name of the software that generated the event (e.g. Sysmon, httpd), or of a subsystem of the operating system (kernel, Microsoft-Windows-Security-Auditing).
keyword
event.reason
Reason why this event happened, according to the source. This describes the why of a particular action or outcome captured in the event. Where event.action captures the action from the event, event.reason describes why that action was taken. For example, a web proxy with an event.action which denied the request may also populate event.reason with the reason why (e.g. blocked site).
keyword
event.timezone
This field should be populated when the event's timestamp does not include timezone information already (e.g. default Syslog timestamps). It's optional otherwise. Acceptable timezone formats are: a canonical ID (e.g. "Europe/Amsterdam"), abbreviated (e.g. "EST") or an HH:mm differential (e.g. "-05:00").
keyword
event.type
This is one of four ECS Categorization Fields, and indicates the third level in the ECS category hierarchy. event.type represents a categorization "sub-bucket" that, when used along with the event.category field values, enables filtering events down to a level appropriate for single visualization. This field is an array. This will allow proper categorization of some events that fall in multiple event types.
keyword
haproxy.backend_name
Name of the backend (or listener) which was selected to manage the connection to the server.
keyword
haproxy.backend_queue
Total number of requests which were processed before this one in the backend's global queue.
long
haproxy.bind_name
Name of the listening address which received the connection.
keyword
haproxy.bytes_read
Total number of bytes transmitted to the client when the log is emitted.
long
haproxy.connection_wait_time_ms
Total time in milliseconds spent waiting for the connection to establish to the final server
long
haproxy.connections.active
Total number of concurrent connections on the process when the session was logged.
long
haproxy.connections.backend
Total number of concurrent connections handled by the backend when the session was logged.
long
haproxy.connections.frontend
Total number of concurrent connections on the frontend when the session was logged.
long
haproxy.connections.retries
Number of connection retries experienced by this session when trying to connect to the server.
long
haproxy.connections.server
Total number of concurrent connections still active on the server when the session was logged.
long
haproxy.error_message
Error message logged by HAProxy in case of error.
text
haproxy.frontend_name
Name of the frontend (or listener) which received and processed the connection.
keyword
haproxy.http.request.captured_cookie
Optional "name=value" entry indicating that the server has returned a cookie with its request.
keyword
haproxy.http.request.captured_headers
List of headers captured in the request due to the presence of the "capture request header" statement in the frontend.
keyword
haproxy.http.request.raw_request_line
Complete HTTP request line, including the method, request and HTTP version string.
keyword
haproxy.http.request.time_wait_ms
Total time in milliseconds spent waiting for a full HTTP request from the client (not counting body) after the first byte was received.
long
haproxy.http.request.time_wait_without_data_ms
Total time in milliseconds spent waiting for the server to send a full HTTP response, not counting data.
long
haproxy.http.response.captured_cookie
Optional "name=value" entry indicating that the client had this cookie in the response.
keyword
haproxy.http.response.captured_headers
List of headers captured in the response due to the presence of the "capture response header" statement in the frontend.
keyword
haproxy.mode
mode that the frontend is operating (TCP or HTTP)
keyword
haproxy.server_name
Name of the last server to which the connection was sent.
keyword
haproxy.server_queue
Total number of requests which were processed before this one in the server queue.
long
haproxy.source
The HAProxy source of the log
keyword
haproxy.tcp.connection_waiting_time_ms
Total time in milliseconds elapsed between the accept and the last close
long
haproxy.termination_state
Condition the session was in when the session ended.
keyword
haproxy.time_backend_connect
Total time in milliseconds spent waiting for the connection to establish to the final server, including retries.
long
haproxy.time_queue
Total time in milliseconds spent waiting in the various queues.
long
haproxy.total_waiting_time_ms
Total time in milliseconds spent waiting in the various queues
long
host.architecture
Operating system architecture.
keyword
host.containerized
If the host is a container.
boolean
host.domain
Name of the domain of which the host is a member. For example, on Windows this could be the host's Active Directory domain or NetBIOS domain name. For Linux this could be the domain of the host's LDAP provider.
keyword
host.hostname
Hostname of the host. It normally contains what the hostname command returns on the host machine.
keyword
host.id
Unique host id. As hostname is not always unique, use values that are meaningful in your environment. Example: The current usage of beat.name.
keyword
host.ip
Host ip addresses.
ip
host.mac
Host mac addresses.
keyword
host.name
Name of the host. It can contain what hostname returns on Unix systems, the fully qualified domain name, or a name specified by the user. The sender decides which value to use.
keyword
host.os.build
OS build information.
keyword
host.os.codename
OS codename, if any.
keyword
host.os.family
OS family (such as redhat, debian, freebsd, windows).
keyword
host.os.kernel
Operating system kernel version as a raw string.
keyword
host.os.name
Operating system name, without the version.
keyword
host.os.name.text
Multi-field of host.os.name.
text
host.os.platform
Operating system platform (such centos, ubuntu, windows).
keyword
host.os.version
Operating system version as a raw string.
keyword
host.type
Type of host. For Cloud providers this can be the machine type like t2.medium. If vm, this could be the container, for example, or other information meaningful in your environment.
keyword
hostname
Hostname from syslog header.
keyword
http.request.body.bytes
Size in bytes of the request body.
long
http.request.method
HTTP request method. The value should retain its casing from the original event. For example, GET, get, and GeT are all considered valid values for this field.
keyword
http.request.referrer
Referrer for this HTTP request.
keyword
http.response.body.bytes
Size in bytes of the response body.
long
http.response.bytes
Total size in bytes of the response (body and headers).
long
http.response.mime_type
Mime type of the body of the response. This value must only be populated based on the content of the response body, not on the Content-Type header. Comparing the mime type of a response with the response's Content-Type header can be helpful in detecting misconfigured servers.
keyword
http.response.status_code
HTTP response status code.
long
http.version
HTTP version.
keyword
input.type
Type of Filebeat input.
keyword
log.level
Original log level of the log event. If the source of the event provides a log level or textual severity, this is the one that goes in log.level. If your source doesn't specify one, you may put your event transport's severity here (e.g. Syslog severity). Some examples are warn, err, i, informational.
keyword
log.source.address
Source address of the syslog message.
keyword
log.syslog.priority
Syslog numeric priority of the event, if available. According to RFCs 5424 and 3164, the priority is 8 * facility + severity. This number is therefore expected to contain a value between 0 and 191.
long
message
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.
match_only_text
network.bytes
Total bytes transferred in both directions. If source.bytes and destination.bytes are known, network.bytes is their sum.
long
network.community_id
A hash of source and destination IPs and ports, as well as the protocol used in a communication. This is a tool-agnostic standard to identify flows. Learn more at https://github.com/corelight/community-id-spec.
keyword
network.direction
Direction of the network traffic. When mapping events from a host-based monitoring context, populate this field from the host's point of view, using the values "ingress" or "egress". When mapping events from a network or perimeter-based monitoring context, populate this field from the point of view of the network perimeter, using the values "inbound", "outbound", "internal" or "external". Note that "internal" is not crossing perimeter boundaries, and is meant to describe communication between two hosts within the perimeter. Note also that "external" is meant to describe traffic between two hosts that are external to the perimeter. This could for example be useful for ISPs or VPN service providers.
keyword
network.iana_number
IANA Protocol Number (https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml). Standardized list of protocols. This aligns well with NetFlow and sFlow related logs which use the IANA Protocol Number.
keyword
network.packets
Total packets transferred in both directions. If source.packets and destination.packets are known, network.packets is their sum.
long
network.protocol
In the OSI Model this would be the Application Layer protocol. For example, http, dns, or ssh. The field value must be normalized to lowercase for querying.
keyword
network.transport
Same as network.iana_number, but instead using the Keyword name of the transport layer (udp, tcp, ipv6-icmp, etc.) The field value must be normalized to lowercase for querying.
keyword
network.type
In the OSI Model this would be the Network Layer. ipv4, ipv6, ipsec, pim, etc The field value must be normalized to lowercase for querying.
keyword
network.vlan.id
VLAN ID as reported by the observer.
keyword
observer.ingress.interface.name
Interface name as reported by the system.
keyword
observer.ingress.vlan.id
VLAN ID as reported by the observer.
keyword
observer.ip
IP addresses of the observer.
ip
observer.name
Custom name of the observer. This is a name that can be given to an observer. This can be helpful for example if multiple firewalls of the same model are used in an organization. If no custom name is needed, the field can be left empty.
keyword
observer.type
The type of the observer the data is coming from. There is no predefined list of observer types. Some examples are forwarder, firewall, ids, ips, proxy, poller, sensor, APM server.
keyword
observer.vendor
Vendor name of the observer.
keyword
pfsense.dhcp.age
Age of DHCP lease in seconds
long
pfsense.dhcp.duid
The DHCP unique identifier (DUID) is used by a client to get an IP address from a DHCPv6 server.
keyword
pfsense.dhcp.hostname
Hostname of DHCP client
keyword
pfsense.dhcp.iaid
Identity Association Identifier used alongside the DUID to uniquely identify a DHCP client
keyword
pfsense.dhcp.lease_time
The DHCP lease time in seconds
long
pfsense.dhcp.subnet
The subnet for which the DHCP server is issuing IPs
keyword
pfsense.dhcp.transaction_id
The DHCP transaction ID
keyword
pfsense.icmp.code
ICMP code.
long
pfsense.icmp.destination.ip
Original destination address of the connection that caused this notification
ip
pfsense.icmp.id
ID of the echo request/reply
long
pfsense.icmp.mtu
MTU to use for subsequent data to this destination
long
pfsense.icmp.otime
Originate Timestamp
date
pfsense.icmp.parameter
ICMP parameter.
long
pfsense.icmp.redirect
ICMP redirect address.
ip
pfsense.icmp.rtime
Receive Timestamp
date
pfsense.icmp.seq
ICMP sequence number.
long
pfsense.icmp.ttime
Transmit Timestamp
date
pfsense.icmp.type
ICMP type.
keyword
pfsense.icmp.unreachable.iana_number
Protocol ID number that was unreachable
long
pfsense.icmp.unreachable.other
Other unreachable information
keyword
pfsense.icmp.unreachable.port
Port number that was unreachable
long
pfsense.ip.ecn
Explicit Congestion Notification.
keyword
pfsense.ip.flags
IP flags.
keyword
pfsense.ip.flow_label
Flow label
keyword
pfsense.ip.id
ID of the packet
long
pfsense.ip.offset
Fragment offset
long
pfsense.ip.tos
IP Type of Service identification.
keyword
pfsense.ip.ttl
Time To Live (TTL) of the packet
long
pfsense.openvpn.peer_info
Information about the Open VPN client
keyword
pfsense.tcp.ack
TCP Acknowledgment number.
long
pfsense.tcp.flags
TCP flags.
keyword
pfsense.tcp.length
Length of the TCP header and payload.
long
pfsense.tcp.options
TCP Options.
array
pfsense.tcp.seq
TCP sequence number.
long
pfsense.tcp.urg
Urgent pointer data.
keyword
pfsense.tcp.window
Advertised TCP window size.
long
pfsense.udp.length
Length of the UDP header and payload.
long
process.name
Process name. Sometimes called program name or similar.
keyword
process.name.text
Multi-field of process.name.
match_only_text
process.pid
Process id.
long
process.program
Process from syslog header.
keyword
related.ip
All of the IPs seen on your event.
ip
related.user
All the user names or other user identifiers seen on the event.
keyword
rule.id
A rule ID that is unique within the scope of an agent, observer, or other entity using the rule for detection of this event.
keyword
server.address
Some event server 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.
keyword
server.bytes
Bytes sent from the server to the client.
long
server.ip
IP address of the server (IPv4 or IPv6).
ip
server.mac
MAC address of the server. The notation format from RFC 7042 is suggested: Each octet (that is, 8-bit byte) is represented by two [uppercase] hexadecimal digits giving the value of the octet as an unsigned integer. Successive octets are separated by a hyphen.
keyword
server.port
Port of the server.
long
source.address
Some event source 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.
keyword
source.as.number
Unique number allocated to the autonomous system. The autonomous system number (ASN) uniquely identifies each network on the Internet.
long
source.as.organization.name
Organization name.
keyword
source.as.organization.name.text
Multi-field of source.as.organization.name.
match_only_text
source.bytes
Bytes sent from the source to the destination.
long
source.domain
The domain name of the source system. This value may be a host name, a fully qualified domain name, or another host naming format. The value may derive from the original event or be added from enrichment.
keyword
source.geo.city_name
City name.
keyword
source.geo.continent_name
Name of the continent.
keyword
source.geo.country_iso_code
Country ISO code.
keyword
source.geo.country_name
Country name.
keyword
source.geo.location
Longitude and latitude.
geo_point
source.geo.name
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.
keyword
source.geo.region_iso_code
Region ISO code.
keyword
source.geo.region_name
Region name.
keyword
source.ip
IP address of the source (IPv4 or IPv6).
ip
source.mac
MAC address of the source. The notation format from RFC 7042 is suggested: Each octet (that is, 8-bit byte) is represented by two [uppercase] hexadecimal digits giving the value of the octet as an unsigned integer. Successive octets are separated by a hyphen.
keyword
source.nat.ip
Translated ip of source based NAT sessions (e.g. internal client to internet) Typically connections traversing load balancers, firewalls, or routers.
ip
source.port
Port of the source.
long
source.user.full_name
User's full name, if available.
keyword
source.user.full_name.text
Multi-field of source.user.full_name.
match_only_text
source.user.id
Unique identifier of the user.
keyword
squid.hierarchy_status
The proxy hierarchy route; the route Content Gateway used to retrieve the object.
keyword
squid.request_status
The cache result code; how the cache responded to the request: HIT, MISS, and so on. Cache result codes are described here.
keyword
tags
List of keywords used to tag each event.
keyword
tls.cipher
String indicating the cipher used during the current connection.
keyword
tls.version
Numeric part of the version parsed from the original string.
keyword
tls.version_protocol
Normalized lowercase protocol name parsed from original string.
keyword
url.domain
Domain of the url, such as "www.elastic.co". In some cases a URL may refer to an IP and/or port directly, without a domain name. In this case, the IP address would go to the domain field. If the URL contains a literal IPv6 address enclosed by [ and ] (IETF RFC 2732), the [ and ] characters should also be captured in the domain field.
keyword
url.extension
The field contains the file extension from the original request url, excluding the leading dot. The file extension is only set if it exists, as not every url has a file extension. The leading period must not be included. For example, the value must be "png", not ".png". Note that when the file name has multiple extensions (example.tar.gz), only the last one should be captured ("gz", not "tar.gz").
keyword
url.full
If full URLs are important to your use case, they should be stored in url.full, whether this field is reconstructed or present in the event source.
wildcard
url.full.text
Multi-field of url.full.
match_only_text
url.original
Unmodified original url as seen in the event source. Note that in network monitoring, the observed URL may be a full URL, whereas in access logs, the URL is often just represented as a path. This field is meant to represent the URL as it was observed, complete or not.
wildcard
url.original.text
Multi-field of url.original.
match_only_text
url.password
Password of the request.
keyword
url.path
Path of the request, such as "/search".
wildcard
url.port
Port of the request, such as 443.
long
url.query
The query field describes the query string of the request, such as "q=elasticsearch". The ? is excluded from the query string. If a URL contains no ?, there is no query field. If there is a ? but no query, the query field exists with an empty string. The exists query can be used to differentiate between the two cases.
keyword
url.scheme
Scheme of the request, such as "https". Note: The : is not part of the scheme.
keyword
url.username
Username of the request.
keyword
user.domain
Name of the directory the user is a member of. For example, an LDAP or Active Directory domain name.
keyword
user.email
User email address.
keyword
user.full_name
User's full name, if available.
keyword
user.full_name.text
Multi-field of user.full_name.
match_only_text
user.id
Unique identifier of the user.
keyword
user.name
Short name or login of the user.
keyword
user.name.text
Multi-field of user.name.
match_only_text
user_agent.device.name
Name of the device.
keyword
user_agent.name
Name of the user agent.
keyword
user_agent.original
Unparsed user_agent string.
keyword
user_agent.original.text
Multi-field of user_agent.original.
match_only_text
user_agent.os.full
Operating system name, including the version or code name.
keyword
user_agent.os.full.text
Multi-field of user_agent.os.full.
match_only_text
user_agent.os.name
Operating system name, without the version.
keyword
user_agent.os.name.text
Multi-field of user_agent.os.name.
match_only_text
user_agent.os.version
Operating system version as a raw string.
keyword
user_agent.version
Version of the user agent.
keyword

Changelog

VersionDetails
1.4.1
Bug fix View pull request
Fix ingest pipeline grok patterns for OPNsense.
1.4.0
Enhancement View pull request
Update package to ECS 8.5.0.
1.3.2
Enhancement View pull request
Use ECS geo.location definition.
1.3.1
Enhancement View pull request
Fix redundant Grok pattern
1.3.0
Enhancement View pull request
Add DHCPv6 support
1.2.0
Enhancement View pull request
Update package to ECS 8.4.0
1.1.2
Enhancement View pull request
Update package name and description to align with standard wording
1.1.1
Bug fix View pull request
Fix grok to support new opensense log format
1.1.0
Enhancement View pull request
Update package to ECS 8.3.0.
1.0.3
Enhancement View pull request
updated links in the documentation to the vendor documentation
1.0.2
Bug fix View pull request
Update HAProxy log parsing to handle non HTTPS and TCP logs
1.0.1
Bug fix View pull request
Format client.mac as per ECS.
1.0.0
Bug fix View pull request
Add OPNsense support. Add PHP-FPM log parsing.
0.4.0
Enhancement View pull request
Update to ECS 8.2
0.3.1
Enhancement View pull request
Add documentation for multi-fields
0.3.0
Enhancement View pull request
Update to ECS 8.0
0.2.2
Bug fix View pull request
Regenerate test files using the new GeoIP database
0.2.1
Bug fix View pull request
Change test public IPs to the supported subset
0.2.0
Enhancement View pull request
Add 8.0.0 version constraint
0.1.3
Enhancement View pull request
Uniform with guidelines
0.1.2
Enhancement View pull request
Update Title and Description.
0.1.1
Bug fix View pull request
Fix logic that checks for the 'forwarded' tag
0.1.0
Enhancement View pull request
initial release