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Get-SmbSession

Retrieves information about the SMB sessions that are currently established between the SMB server and theassociated clients.
Get-SmbSession [[-SessionId] <UInt64[]>] [[-ClientComputerName] <String[]>] [[-ClientUserName] <String[]>][[-ScopeName] <String[]>] [[-ClusterNodeName] <String[]>] [-CimSession <CimSession[]>] [-IncludeHidden][-SmbInstance {Default | CSV}] [-ThrottleLimit <Int32>] [<CommonParameters>]

The Get-SmbSession cmdlet retrieves basic information about the Server Message Block (SMB) sessions that are currently established between the SMB server and the associated clients.

Parameters

-CimSession [<CimSession[]>]

Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.

-ClientComputerName [<String[]>]

Specifies the client computer name from which the only sessions are returned.

-ClientUserName [<String[]>]

Specifies the name of the user whose sessions are retrieved.

-ClusterNodeName [<String[]>]

Specifies, in the case of a share hosted by a Windows cluster, the name of the server which is hosting the sessions is retrieved.

-IncludeHidden [<SwitchParameter>]

Indicates that sessions that are created and used internally are enumerated also.

-ScopeName [<String[]>]

Specifies the scope of the sessions being retrieved.

-SessionId [<UInt64[]>]

Specifies the identifiers (IDs) that uniquely identify the sessions for which the information is retrieved.

-SmbInstance [<Microsoft.PowerShell.Cmdletization.GeneratedTypes.SmbShare.SmbInstance>]

Specifies the input to this cmdlet. You can use this parameter, or you can pipe the input to this cmdlet.

-ThrottleLimit [<Int32>]

Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0 is entered, then Windows PowerShellr calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.

<CommonParameters>

This cmdlet supports the common parameters: Verbose, Debug,ErrorAction, ErrorVariable, WarningAction, WarningVariable,OutBuffer, PipelineVariable, and OutVariable.

Inputs
None
Outputs
Microsoft.Management.Infrastructure.CimInstance#root/Microsoft/Windows/SMB/MSFT_SmbSession
The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects. The path after the pound sign (#) provides the namespace and class name for the underlying WMI object. The MSFT_SmbSession object represents the sessions established between the SMB server and the associated clients.
Examples
  1. Get session information:
    PS C:\> Get-SmbSession
    
       SessionId                     ClientComputerName            ClientUserName                NumOpens 
       ---------                     ------------------            --------------                -------- 
       85899345929                   [fe80::c8c0:f65d:3bc6:7313]   Contoso\Contoso-FS1$          0 
       4415226380377                 192.168.102.14                Contoso\Contoso-HV2$          1 
       4415226380385                 192.168.102.14                Contoso\Contoso-HV2$          1 
       4415226380393                 192.168.102.14                Contoso\Contoso-HV2$          5 
       8813272891397                 [fe80::6484:f325:adff:39eb]   Contoso\Contoso-FS2$          0 
       8813272891441                 192.168.101.13                Contoso\Contoso-HV1$          1 
       8813272891449                 192.168.101.13                Contoso\Contoso-HV1$          1 
       8813272891457                 192.168.101.13                Contoso\Contoso-HV1$          1 
       8813272891461                 192.168.101.13                Contoso\Contoso-HV1$          1 
       8813272891469                 192.168.101.13                Contoso\Contoso-HV1$          5 
       8813272891489                 192.168.102.14                Contoso\Contoso-HV2$          1 
       8813272891493                 192.168.102.14                Contoso\Contoso-HV2$          1 
       8813272891517                 192.168.102.14                Contoso\Contoso-HV2$          5 
       8813272891581                 192.168.102.13                Contoso\Contoso-HV1$          1 
       8813272891585                 192.168.102.13                Contoso\Contoso-HV1$          1 
       8813272891609                 192.168.102.13                Contoso\Contoso-HV1$          3 
       8813272891613                 192.168.101.13                Contoso\Contoso-HV1$          2 
       8813272891621                 192.168.101.13                Contoso\Administrator         0

    This command retrieves information about the SMB sessions that are currently established between the SMB server and the associated clients.

  2. Get information for a specific session:
    PS C:\> Get-SmbSession -SessionId 8813272891621
    
       SessionId                     ClientComputerName            ClientUserName                NumOpens 
       ---------                     ------------------            --------------                -------- 
       8813272891621                 192.168.101.13                Contoso\Administrator         0

    This command retrieves information about the SMB session identified as 8813272891621 that is currently established between the SMB server and the associated clients.

  3. Get session information for a specific client:
    PS C:\> Get-SmbSession -ClientComputerName "192.168.102.14"
    
       SessionId                     ClientComputerName            ClientUserName                NumOpens 
       ---------                     ------------------            --------------                -------- 
       4415226380377                 192.168.102.14                Contoso\Contoso-HV2$          1 
       4415226380385                 192.168.102.14                Contoso\Contoso-HV2$          1 
       4415226380393                 192.168.102.14                Contoso\Contoso-HV2$          5 
       8813272891489                 192.168.102.14                Contoso\Contoso-HV2$          1 
       8813272891493                 192.168.102.14                Contoso\Contoso-HV2$          1 
       8813272891517                 192.168.102.14                Contoso\Contoso-HV2$          5

    This command retrieves information about the SMB sessions that are currently established between the SMB server and the SMB client at the IP address 192.168.102.14.

  4. Get session information for a client:
    PS C:\> Get-SmbSession -ClientUserName "Contoso\Contoso-HV1$"
    
       SessionId                     ClientComputerName            ClientUserName                NumOpens 
       ---------                     ------------------            --------------                -------- 
       8813272891441                 192.168.101.13                Contoso\Contoso-HV1$          1 
       8813272891449                 192.168.101.13                Contoso\Contoso-HV1$          1 
       8813272891457                 192.168.101.13                Contoso\Contoso-HV1$          1 
       8813272891461                 192.168.101.13                Contoso\Contoso-HV1$          1 
       8813272891469                 192.168.101.13                Contoso\Contoso-HV1$          5 
       8813272891581                 192.168.102.13                Contoso\Contoso-HV1$          1 
       8813272891585                 192.168.102.13                Contoso\Contoso-HV1$          1 
       8813272891609                 192.168.102.13                Contoso\Contoso-HV1$          3 
       8813272891613                 192.168.101.13                Contoso\Contoso-HV1$          2

    This command retrieves information about the SMB sessions that are currently established between the SMB server and the SMB client that has the user name Contoso\Contoso-HV1$.

  5. Get all information for a session:
    PS C:\> Get-SmbSession -SessionId 8813272891441 | Select-Object -Property *
    ClientComputerName    : 192.168.101.13 ClientUserName        : Contoso\Contoso-HV1$ ClusterNodeName       : Contoso-FS1 Dialect               : 3.00 NumOpens              : 1 ScopeName             : Contoso-FS SecondsExists         : 45346 SecondsIdle           : 33 SessionId             : 8813272891441 TransportName         : PSComputerName        : CimClass              : ROOT/Microsoft/Windows/SMB:MSFT_SmbSession CimInstanceProperties : {ClientComputerName, ClientUserName, ClusterNodeName, Dialect...} CimSystemProperties   : Microsoft.Management.Infrastructure.CimSystemProperties
    

    This command retrieves all of the information about the SMB session identified as 8813272891441 that are currently established between the SMB server and the SMB client.

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