AWS Tools for Windows PowerShell
Command Reference

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Synopsis

Calls the AWS Network Firewall StartFlowCapture API operation.

Syntax

Start-NWFWFlowCapture
-FirewallArn <String>
-AvailabilityZone <String>
-FlowFilter <FlowFilter[]>
-MinimumFlowAgeInSecond <Int32>
-VpcEndpointAssociationArn <String>
-VpcEndpointId <String>
-Select <String>
-Force <SwitchParameter>
-ClientConfig <AmazonNetworkFirewallConfig>

Description

Begins capturing the flows in a firewall, according to the filters you define. Captures are similar, but not identical to snapshots. Capture operations provide visibility into flows that are not closed and are tracked by a firewall's flow table. Unlike snapshots, captures are a time-boxed view. A flow is network traffic that is monitored by a firewall, either by stateful or stateless rules. For traffic to be considered part of a flow, it must share Destination, DestinationPort, Direction, Protocol, Source, and SourcePort. To avoid encountering operation limits, you should avoid starting captures with broad filters, like wide IP ranges. Instead, we recommend you define more specific criteria with FlowFilters, like narrow IP ranges, ports, or protocols.

Parameters

-AvailabilityZone <String>
The ID of the Availability Zone where the firewall is located. For example, us-east-2a.Defines the scope a flow operation. You can use up to 20 filters to configure a single flow operation.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ClientConfig <AmazonNetworkFirewallConfig>
Amazon.PowerShell.Cmdlets.NWFW.AmazonNetworkFirewallClientCmdlet.ClientConfig
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-FirewallArn <String>
The Amazon Resource Name (ARN) of the firewall.
Required?True
Position?1
Accept pipeline input?True (ByValue, ByPropertyName)
-FlowFilter <FlowFilter[]>
Defines the scope a flow operation. You can use up to 20 filters to configure a single flow operation. Starting with version 4 of the SDK this property will default to null. If no data for this property is returned from the service the property will also be null. This was changed to improve performance and allow the SDK and caller to distinguish between a property not set or a property being empty to clear out a value. To retain the previous SDK behavior set the AWSConfigs.InitializeCollections static property to true.
Required?True
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesFlowFilters
-Force <SwitchParameter>
This parameter overrides confirmation prompts to force the cmdlet to continue its operation. This parameter should always be used with caution.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-MinimumFlowAgeInSecond <Int32>
The reqested FlowOperation ignores flows with an age (in seconds) lower than MinimumFlowAgeInSeconds. You provide this for start commands.We recommend setting this value to at least 1 minute (60 seconds) to reduce chance of capturing flows that are not yet established.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesMinimumFlowAgeInSeconds
-Select <String>
Use the -Select parameter to control the cmdlet output. The default value is '*'. Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.NetworkFirewall.Model.StartFlowCaptureResponse). Specifying the name of a property of type Amazon.NetworkFirewall.Model.StartFlowCaptureResponse will result in that property being returned. Specifying -Select '^ParameterName' will result in the cmdlet returning the selected cmdlet parameter value.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-VpcEndpointAssociationArn <String>
The Amazon Resource Name (ARN) of a VPC endpoint association.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-VpcEndpointId <String>
A unique identifier for the primary endpoint associated with a firewall.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)

Common Credential and Region Parameters

-AccessKey <String>
The AWS access key for the user account. This can be a temporary access key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAK
-Credential <AWSCredentials>
An AWSCredentials object instance containing access and secret key information, and optionally a token for session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-EndpointUrl <String>
The endpoint to make the call against.Note: This parameter is primarily for internal AWS use and is not required/should not be specified for normal usage. The cmdlets normally determine which endpoint to call based on the region specified to the -Region parameter or set as default in the shell (via Set-DefaultAWSRegion). Only specify this parameter if you must direct the call to a specific custom endpoint.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-NetworkCredential <PSCredential>
Used with SAML-based authentication when ProfileName references a SAML role profile. Contains the network credentials to be supplied during authentication with the configured identity provider's endpoint. This parameter is not required if the user's default network identity can or should be used during authentication.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-ProfileLocation <String>
Used to specify the name and location of the ini-format credential file (shared with the AWS CLI and other AWS SDKs)If this optional parameter is omitted this cmdlet will search the encrypted credential file used by the AWS SDK for .NET and AWS Toolkit for Visual Studio first. If the profile is not found then the cmdlet will search in the ini-format credential file at the default location: (user's home directory)\.aws\credentials.If this parameter is specified then this cmdlet will only search the ini-format credential file at the location given.As the current folder can vary in a shell or during script execution it is advised that you use specify a fully qualified path instead of a relative path.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAWSProfilesLocation, ProfilesLocation
-ProfileName <String>
The user-defined name of an AWS credentials or SAML-based role profile containing credential information. The profile is expected to be found in the secure credential file shared with the AWS SDK for .NET and AWS Toolkit for Visual Studio. You can also specify the name of a profile stored in the .ini-format credential file used with the AWS CLI and other AWS SDKs.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesStoredCredentials, AWSProfileName
-Region <Object>
The system name of an AWS region or an AWSRegion instance. This governs the endpoint that will be used when calling service operations. Note that the AWS resources referenced in a call are usually region-specific.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesRegionToCall
-SecretKey <String>
The AWS secret key for the user account. This can be a temporary secret key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesSK, SecretAccessKey
-SessionToken <String>
The session token if the access and secret keys are temporary session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesST

Outputs

Amazon.NetworkFirewall.Model.StartFlowCaptureResponse
This cmdlet returns an Amazon.NetworkFirewall.Model.StartFlowCaptureResponse object containing multiple properties.
AWS Tools for PowerShell User Guide

Supported Version

AWS Tools for PowerShell: 2.x.y.z