Block-SmbShareAccess
Adds a deny ACE for a trustee to the security descriptor of the SMB share.
Syntax
Block-SmbShareAccess
[-Name] <String[]>
[[-ScopeName] <String[]>]
[-SmbInstance <SmbInstance>]
[-AccountName <String[]>]
[-Force]
[-CimSession <CimSession[]>]
[-ThrottleLimit <Int32>]
[-AsJob]
[-WhatIf]
[-Confirm]
[<CommonParameters>] Block-SmbShareAccess
-InputObject <CimInstance[]>
[-AccountName <String[]>]
[-Force]
[-CimSession <CimSession[]>]
[-ThrottleLimit <Int32>]
[-AsJob]
[-WhatIf]
[-Confirm]
[<CommonParameters>] Description
The Block-SmbShareAccess cmdlet adds a deny access control entry (ACE) to the security descriptor of the Server Message Block (SMB) share.
Examples
Example 1: Add a deny ACS
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 ChangeThis command adds a deny ACE for a trustee to the security descriptor of an SMB share named VMFiles.
Example 2: Add a deny ACS without confirmation
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 ChangeThis command adds a deny ACE for a trustee to the security descriptor of an SMB share named VMFiles without confirmation from the user.
Parameters
-AccountName
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.
| Type: | String[] |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-AsJob
Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete.
| Type: | SwitchParameter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-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.
| Type: | CimSession[] |
| Aliases: | Session |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Confirm
Prompts you for confirmation before running the cmdlet.
| Type: | SwitchParameter |
| Aliases: | cf |
| Position: | Named |
| Default value: | False |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Force
Forces the command to run without asking for user confirmation.
| Type: | SwitchParameter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-InputObject
Specifies the input object that is used in a pipeline command.
| Type: | CimInstance[] |
| Position: | Named |
| Default value: | None |
| Required: | True |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-Name
Specifies the name of the SMB share.
| Type: | String[] |
| Position: | 1 |
| Default value: | None |
| Required: | True |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-ScopeName
Specifies the scope of the share specified by name.
| Type: | String[] |
| Position: | 2 |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-SmbInstance
Specifies the input to this cmdlet. You can use this parameter, or you can pipe the input to this cmdlet.
| Type: | SmbInstance |
| Accepted values: | Default, CSV, SBL, SR |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-ThrottleLimit
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.
| Type: | Int32 |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-WhatIf
Shows what would happen if the cmdlet runs. The cmdlet is not run.
| Type: | SwitchParameter |
| Aliases: | wi |
| Position: | Named |
| Default value: | False |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
Inputs
None
Outputs
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_SmbShareAccessControlEntry object represents the new SMB share ACE.