System socket datasetedit

Warning

This functionality is in beta and is subject to change. The design and code is less mature than official GA features and is being provided as-is with no warranties. Beta features are not subject to the support SLA of official GA features.

This is the socket dataset of the system module.

Implementationedit

It is implemented for Linux only.

On Linux, the dataset uses the sock_diag netlink subsystem to periodically receive a list of all sockets from the kernel. The polling frequency can be set using the period configuration option. A low value (e.g. 1s) is recommended to capture short-lived sockets.

By default, sockets from or to localhost will be excluded. This can be controlled using the socket.include_localhost configuration option.

Example dashboardedit

The dataset comes with a sample dashboard:

Auditbeat System Socket Dashboard

Fieldsedit

For a description of each field in the dataset, see the exported fields section.

Here is an example document generated by this dataset:

{
    "@timestamp": "2017-10-12T08:05:34.853Z",
    "destination": {
        "ip": "10.0.2.15",
        "port": 22
    },
    "event": {
        "action": "socket_closed",
        "dataset": "socket",
        "kind": "event",
        "module": "system"
    },
    "message": "Inbound socket (10.0.2.2:55270 -\u003e 10.0.2.15:22) CLOSED by process sshd (PID: 22799) and user root (UID: 0)",
    "network": {
        "community_id": "1:IXrg9Y06W7zrkqBlE30jpC/mzjo=",
        "direction": "inbound",
        "transport": "tcp",
        "type": "ipv4"
    },
    "process": {
        "name": "sshd",
        "pid": 22799
    },
    "service": {
        "type": "system"
    },
    "socket": {
        "entity_id": "fIj66YRoGyoe8dML"
    },
    "source": {
        "ip": "10.0.2.2",
        "port": 55270
    },
    "user": {
        "id": 0,
        "name": "root"
    }
}