Update-SPMachineKey

Reference

Module:: sharepoint-server

Applies to:: SharePoint Server Subscription Edition

Deploys ASP.NET view state decryption and validation keys to servers in the farm.

Syntax

Update-SPMachineKey
      -WebApplication <SPWebApplicationPipeBind>
      [-Local]
      [-AssignmentCollection <SPAssignmentCollection>]
      [-WhatIf]
      [-Confirm]
      [<CommonParameters>]

Description

The `Update-SPMachineKey` cmdlet deploys ASP.NET view state decryption and validation keys stored in the configuration database to servers in the farm.

Examples

-------------EXAMPLE 1-------------

Update-SPMachineKey -WebApplication http://sitename

This example deploys the ASP.NET view state decryption and validation keys stored in the configuration database for web application 'http://sitename' to all servers in the farm.

-------------EXAMPLE 2-------------

Update-SPMachineKey -WebApplication http://sitename -Local

This example deploys the ASP.NET view state decryption and validation keys stored in the configuration database for web application 'http://sitename' to the local server.

Parameters

-AssignmentCollection

Manages objects for the purpose of proper disposal. Use of objects, such as SPWeb or SPSite, can use large amounts of memory and use of these objects in Windows PowerShell scripts requires proper memory management. Using the SPAssignment object, you can assign objects to a variable and dispose of the objects after they are needed to free up memory. When SPWeb, SPSite, or SPSiteAdministration objects are used, the objects are automatically disposed of if an assignment collection or the Global parameter is not used.

When the Global parameter is used, all objects are contained in the global store. If objects are not immediately used, or disposed of by using the Stop-SPAssignment command, an out-of-memory scenario can occur.

Type:	SPAssignmentCollection
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	True
Accept wildcard characters:	False
Applies to:	SharePoint Server Subscription Edition

-Confirm

Prompts you for confirmation before running the cmdlet.

Type:	SwitchParameter
Aliases:	cf
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	SharePoint Server Subscription Edition

-Local

Deploy the decryption and validation keys only to the local server. Other servers in the farm will continue to use the previous decryption and validation keys. Web sessions that are load balanced across multiple servers in the farm will fail if these keys are not synchronized on every server in the farm.

If this parameter is not specified, the decryption and validation keys will be deployed to all servers in the farm.

Type:	SwitchParameter
Position:	Named
Default value:	False
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	SharePoint Server Subscription Edition

-WebApplication

Specifies the name, URL, or GUID of the Web application.

Type:	SPWebApplicationPipeBind
Position:	Named
Default value:	None
Required:	True
Accept pipeline input:	True
Accept wildcard characters:	False
Applies to:	SharePoint Server Subscription Edition

-WhatIf

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

Type:	SwitchParameter
Aliases:	wi
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	SharePoint Server Subscription Edition

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