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Test-ComputerSecureChannel

Tue Jan 29, 2019 10:20 pm

NAME Test-ComputerSecureChannel



SYNOPSIS

Tests and repairs the secure channel between the local computer and its domain.





SYNTAX

Test-ComputerSecureChannel [-Confirm] [-Credential <PSCredential>] [-Repair] [-Server <String>] [-WhatIf] [<CommonParameters>]





DESCRIPTION

The Test-ComputerSecureChannel cmdlet verifies that the channel between the local computer and its domain is working correctly by checking the

status of its trust relationships. If a connection fails, you can use the Repair parameter to try to restore it. Test-ComputerSecureChannel

returns $True if the channel is working correctly and $False if it is not. This result lets you use the cmdlet in conditional statements in

functions and scripts. To get more detailed test results, use the Verbose parameter.



This cmdlet works much like NetDom.exe. Both NetDom and Test-ComputerSecureChannel use the NetLogon service to perform the actions.





PARAMETERS

-Confirm [<SwitchParameter>]

Prompts you for confirmation before running the cmdlet.



Required? false

Position? named

Default value False

Accept pipeline input? False

Accept wildcard characters? false



-Credential <PSCredential>

Specifies a user account that has permission to perform this action. Type a user name, such as User01 or Domain01\\User01, or enter a

PSCredential object, such as one that the Get-Credential cmdlet returns. By default, the cmdlet uses the credentials of the current user.



The Credential parameter is designed for use in commands that use the Repair parameter to repair the channel between the computer and the

domain.



Required? false

Position? named

Default value None

Accept pipeline input? False

Accept wildcard characters? false



-Repair [<SwitchParameter>]

Indicates that this cmdlet removes and then rebuilds the channel established by the NetLogon service. Use this parameter to try to restore a

connection that has failed the test.



To use this parameter, the current user must be a member of the Administrators group on the local computer.



Required? false

Position? named

Default value False

Accept pipeline input? False

Accept wildcard characters? false



-Server <String>

Specifies the domain controller to run the command. If this parameter is not specified, this cmdlet selects a default domain controller for

the operation.



Required? false

Position? named

Default value None

Accept pipeline input? False

Accept wildcard characters? false



-WhatIf [<SwitchParameter>]

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



Required? false

Position? named

Default value False

Accept pipeline input? False

Accept wildcard characters? false



<CommonParameters>

This cmdlet supports the common parameters: Verbose, Debug,

ErrorAction, ErrorVariable, WarningAction, WarningVariable,

OutBuffer, PipelineVariable, and OutVariable. For more information, see

about_CommonParameters (http://go.microsoft.com/fwlink/?LinkID=113216).



INPUTS

None

You cannot pipe input to this cmdlet.





OUTPUTS

System.Boolean

This cmdlet returns $True if the connection is working correctly and $False if it is not.





NOTES





To run a Test-ComputerSecureChannel * command on Windows Vista and later versions of the Windows operating system, open Windows PowerShell by

using the Run as administrator option. Test-ComputerSecureChannel is implemented by using the I_NetLogonControl2 * function, which controls

various aspects of the Netlogon service.



Example 1: Test a channel between the local computer and its domain



PS C:\\>Test-ComputerSecureChannel

True



This command tests the channel between the local computer and the domain to which it is joined.

Example 2: Test a channel between the local computer and a domain controller



PS C:\\>Test-ComputerSecureChannel -Server "DCName.fabrikam.com"

True



This command specifies a preferred domain controller for the test.

Example 3: Reset the channel between the local computer and its domain



PS C:\\>Test-ComputerSecureChannel -Repair

True



This command resets the channel between the local computer and its domain.

Example 4: Display detailed information about the test



PS C:\\>Test-ComputerSecureChannel -verbose

VERBOSE: Performing operation "Test-ComputerSecureChannel" on Target "SERVER01".

True

VERBOSE: "The secure channel between 'SERVER01' and 'net.fabrikam.com' is alive and working correctly."



This command uses the Verbose common parameter to request detailed messages about the operation. For more information about Verbose , see

about_CommonParameters.

Example 5: Test a connection before you run a script



PS C:\\>Set-Alias tcsc Test-ComputerSecureChannel

if (!(tcsc))

{Write-Host "Connection failed. Reconnect and retry."}

else { &(.\\Get-Servers.ps1) }



This example shows how to use Test-ComputerSecureChannel to test a connection before you run a script that requires the connection.



The first command uses the Set-Alias cmdlet to create an alias for the cmdlet name. This saves space and prevents typing errors.



The If statement checks the value that Test-ComputerSecureChannel returns before it runs a script.



RELATED LINKS

Online Version: http://go.microsoft.com/fwlink/?LinkId=821645

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