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Block-SmbShareAccess

Block-SmbShareAccess

smbshare.cdxml

Synopsis

Adds a deny access control entry (ACE) for a trustee to the security descriptor of the Server Message Block (SMB) share.

Syntax

Block-SmbShareAccess [-Name] [-ScopeName] [-AccountName] [-AsJob] [-CimSession] [-Force] [-ThrottleLimit] [-Confirm] [-WhatIf] [<CommonParameters>]

Block-SmbShareAccess [-AccountName] [-AsJob] [-CimSession] [-Force] [-ThrottleLimit] [-InputObject] [-Confirm] [-WhatIf] [<CommonParameters>]

Detailed Description

The Block-SmbShareAccess cmdlet adds a deny access control entry (ACE) to the security descriptor of the Server Message Block (SMB) share.

Parameters

-AccountName <String[]>

Specifies the name of the account for the user who is being denied access to the share. Use a comma-separated list to deny share access to multiple accounts.

Aliases

None

Required?

false

Position

named

Default value

None

Accept pipeline input?

false

Accept wildcard characters?

false

-AsJob <SwitchParameter>

Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete. The cmdlet immediately returns an object that represents the job and then displays the command prompt. You can continue to work in the session while the job completes. To manage the job, use the *-Job cmdlets. To get the job results, use the Receive-Job cmdlet. For more information about Windows PowerShell® background jobs, see about_Jobs.

Aliases

None

Required?

false

Position

named

Default value

None

Accept pipeline input?

false

Accept wildcard characters?

false

-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.

Aliases

None

Required?

false

Position

named

Default value

None

Accept pipeline input?

false

Accept wildcard characters?

false

-Force <SwitchParameter>

Forces the command to run without asking for user confirmation.

Aliases

None

Required?

false

Position

named

Default value

None

Accept pipeline input?

false

Accept wildcard characters?

false

-InputObject <CimInstance[]>

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

Aliases

None

Required?

true

Position

named

Default value

None

Accept pipeline input?

True (ByValue)

Accept wildcard characters?

false

-Name <String[]>

Specifies the name of the SMB share.

Aliases

None

Required?

true

Position

2

Default value

None

Accept pipeline input?

True (ByPropertyName)

Accept wildcard characters?

false

-ScopeName <String[]>

Specifies the scope of the share specified by name.

Aliases

None

Required?

false

Position

3

Default value

None

Accept pipeline input?

True (ByPropertyName)

Accept wildcard characters?

false

-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 PowerShell® 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.

Aliases

None

Required?

false

Position

named

Default value

None

Accept pipeline input?

false

Accept wildcard characters?

false

-Confirm <SwitchParameter>

Prompts you for confirmation before running the cmdlet.

Aliases

None

Required?

false

Position

named

Default value

false

Accept pipeline input?

false

Accept wildcard characters?

false

-WhatIf <SwitchParameter>

Shows what would happen if the cmdlet runs. The cmdlet is not run.

Aliases

None

Required?

false

Position

named

Default value

false

Accept pipeline input?

false

Accept wildcard characters?

false

Input Type

None

Return Type

Microsoft.Management.Infrastructure.CimInstance#root/Microsoft/Windows/SMB/MSFT_SmbShareAccessControlEntry

Notes

None

Examples

EXAMPLE 1

This example adds a deny ACE for a trustee to the security descriptor of an SMB share named VMFiles.

PS C:\>Block-SmbShareAccess -Name VMFiles -AccountName Contoso\Guest
Confirm
Are you sure you want to perform this action? 
Performing operation 'Modify' on Target 'Contoso-SO,VMFiles'. 
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "Y"): Y
 
Name                    ScopeName               AccountName             AccessControlType       AccessRight 
----                    ---------               -----------             -----------------       ----------- 
VMFiles                 Contoso-SO              Contoso\Guest           Deny                    Full 
VMFiles                 Contoso-SO              Contoso\Administrator   Allow                   Full 
VMFiles                 Contoso-SO              Contoso\Contoso-HV1$    Allow                   Full 
VMFiles                 Contoso-SO              Contoso\Contoso-HV2$    Allow                   Full 
VMFiles                 Contoso-SO              Contoso\Domain Admins   Allow                   Change 

EXAMPLE 2

This example adds a deny ACE for a trustee to the security descriptor of an SMB share named VMFiles without confirmation from the user.

PS C:\>Block-SmbShareAccess -Name VMFiles -AccountName "Guest Users" -Force

Name                    ScopeName               AccountName             AccessControlType       AccessRight 
----                    ---------               -----------             -----------------       ----------- 
VMFiles                 Contoso-SO              Contoso\Guest           Deny                    Full 
VMFiles                 Contoso-SO              Contoso\Administrator   Allow                   Full 
VMFiles                 Contoso-SO              Contoso\Contoso-HV1$    Allow                   Full 
VMFiles                 Contoso-SO              Contoso\Contoso-HV2$    Allow                   Full 
VMFiles                 Contoso-SO              Contoso\Domain Admins   Allow                   Change 

Online Version
Get-SmbShareAccess
Grant-SmbShareAccess
Revoke-SmbShareAccess
Unblock-SmbShareAccess