Microsoft DFSN reference: Changes settings for a DFS namespace root server. The syntax and selected example below are adapted from the pinned Windows Server 2025 reference. Module availability, target configuration and delegated permissions determine whether it can run in your environment. Documentation and parameter text: Microsoft, CC BY 4.0; formatting adapted by Cmdlet World. No execution testing is claimed.
Use an account with the target resource permissions documented for Set-DfsnServerConfiguration. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.
Supported environments
Windows / DFSN · Windows Server 2025 documentation; feature/module prerequisites apply
Parameters
-AsJob
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.
-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.
-ComputerName (required)
Specifies the host name or FQDN for the DFS namespace server for which the cmdlet modifies settings.
-Confirm
Prompts you for confirmation before running the cmdlet.
-EnableInsiteReferrals
Indicates whether this server provides only in-site referrals. If you assign a value of $true, the server returns only referrals for targets in the same site as the client. If you assign a value of $false, the server returns in-site referrals and other referrals.
-EnableSiteCostedReferrals
Indicates whether the server can use cost-based selection. If you specify a value of $true, the DFS namespace server provides referrals for folder targets to clients in the following order: - Folder targets in the same site as a client, in random order. - Folder targets for which the DFS namespace server has information. The referrals for the nearest site are first, in random order, followed by the next nearest site, in random order. - Targets for which DFS namespace server has no site information, in random order. If you specify a value of $false, the DFS namespace server provides referrals for folder targets to clients in the following order: - Folder targets in the same site as the client, in random order. - Other folder targets, in random order.
-LdapTimeoutSec
Specifies a time-out value, in seconds, for Lightweight Directory Access Protocol (LDAP) requests for the DFS namespace server.
-PreferLogonDC
Indicates whether to prefer the logon domain controller in referrals. If you specify a value of $true for this parameter, the DFS namespace server places referrals to the computer that hosts the logon domain controller at the top of the list of referrals.
-SyncIntervalSec
Specifies an interval, in seconds. This interval controls how often domain-based DFS namespace root servers and domain controllers connect to the PDC emulator to get updates of DFS namespace metadata.
-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.
-UseFqdn
Indicates whether a DFS namespace server uses FQDNs in referrals. If this parameter has a value of $true, the server uses FQDNs in referrals. If this parameter has a value of $false, the server uses NetBIOS names. The default for DFS namespace servers is to use NetBIOS names in referrals.
-WhatIf
Shows what would happen if the cmdlet runs. The cmdlet is not run.
Prerequisites
Windows with the DFSN module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.
Security considerations
This cmdlet changes system state. Review every target and parameter in the official reference, test outside production, and prepare an appropriate backup or rollback. Do not execute the example automatically.
Examples
Example 1: Set LDAP time-out for a DFS namespace server
This command sets an LDAP time-out value of 60 seconds for the local computer, which is a DFS namespace server. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.