Test-ADDSDomainControllerInstallation

Runs the prerequisites (only) for installing a domain controller in Active Directory.

Syntax

Test-ADDSDomainControllerInstallation
    -DomainName <String>
    [-SafeModeAdministratorPassword <SecureString>]
    [-SiteName <String>]
    [-ADPrepCredential <PSCredential>]
    [-AllowDomainControllerReinstall]
    [-ApplicationPartitionsToReplicate <String[]>]
    [-CreateDnsDelegation]
    [-Credential <PSCredential>]
    [-CriticalReplicationOnly]
    [-DatabasePath <String>]
    [-DnsDelegationCredential <PSCredential>]
    [-NoDnsOnNetwork]
    [-NoGlobalCatalog]
    [-InstallationMediaPath <String>]
    [-InstallDns]
    [-LogPath <String>]
    [-MoveInfrastructureOperationMasterRoleIfNecessary]
    [-NoRebootOnCompletion]
    [-ReplicationSourceDC <String>]
    [-SkipAutoConfigureDns]
    [-SystemKey <SecureString>]
    [-SysvolPath <String>]
    [-Force]
    [<CommonParameters>]
Test-ADDSDomainControllerInstallation
    -DomainName <String>
    [-SafeModeAdministratorPassword <SecureString>]
    -SiteName <String>
    [-ADPrepCredential <PSCredential>]
    [-AllowDomainControllerReinstall]
    [-AllowPasswordReplicationAccountName <String[]>]
    [-ApplicationPartitionsToReplicate <String[]>]
    [-CreateDnsDelegation]
    [-Credential <PSCredential>]
    [-CriticalReplicationOnly]
    [-DatabasePath <String>]
    [-DelegatedAdministratorAccountName <String>]
    [-DenyPasswordReplicationAccountName <String[]>]
    [-DnsDelegationCredential <PSCredential>]
    [-NoDnsOnNetwork]
    [-NoGlobalCatalog]
    [-InstallationMediaPath <String>]
    [-InstallDns]
    [-LogPath <String>]
    [-MoveInfrastructureOperationMasterRoleIfNecessary]
    [-ReadOnlyReplica]
    [-NoRebootOnCompletion]
    [-ReplicationSourceDC <String>]
    [-SkipAutoConfigureDns]
    [-SystemKey <SecureString>]
    [-SysvolPath <String>]
    [-Force]
    [<CommonParameters>]
Test-ADDSDomainControllerInstallation
    -DomainName <String>
    [-SafeModeAdministratorPassword <SecureString>]
    [-ADPrepCredential <PSCredential>]
    [-ApplicationPartitionsToReplicate <String[]>]
    [-Credential <PSCredential>]
    [-CriticalReplicationOnly]
    [-DatabasePath <String>]
    [-NoDnsOnNetwork]
    [-InstallationMediaPath <String>]
    [-LogPath <String>]
    [-NoRebootOnCompletion]
    [-ReplicationSourceDC <String>]
    [-SkipAutoConfigureDns]
    [-SystemKey <SecureString>]
    [-SysvolPath <String>]
    [-UseExistingAccount]
    [-Force]
    [<CommonParameters>]

Description

The Test-ADDSDomainControllerInstallation cmdlet runs those prerequisite checks (only) which would be performed if you were to use the Install-ADDSDomainController cmdlet to install a domain controller in Active Directory. It differs from using the -WhatIf parameter with the Install-ADDSDomainController cmdlet in that instead of summarizing the changes that would occur during the installation process, this cmdlet actually tests whether those changes are possible given the current environment.

For more information on the scope of these prerequisite checks that the ADDSDeployment module performs when using this cmdlet see the section "Prerequisite Checking" in Understand and Troubleshoot AD DS Simplified Administrationhttp://go.microsoft.com/fwlink/?LinkID=237244.

Examples

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

C:\PS>Test-ADDSDomainControllerInstallation -InstallDns -Credential (Get-Credential CORP\Administrator) -DomainName "corp.contoso.com"

Description


Runs the prerequisites (only) to determine if installing a domain controller is possible that includes a DNS server for the corp.contoso.com domain (using domain administrator credentials) and that will cause the user to be prompted to enter and confirm the Directory Services Restore Mode (DSRM) password.

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

C:\PS>Test-ADDSDomainControllerInstallation -InstallDns -DomainName "corp.contoso.com "

Description


Runs the prerequisites (only) to determine if installing a domain controller along with the DNS server in the corp.contoso.com domain and that will cause the user to be prompted to enter and confirm the Directory Services Restore Mode (DSRM) password.

-------------------------- EXAMPLE 3 --------------------------

C:\PS>Test-ADDSDomainControllerInstallation -InstallDns -Credential (Get-Credential) -DomainName (Read-Host "Domain to promote into")

Description


Runs the prerequisites (only) to determine if installing a domain controller along with a DNS server and that will cause the user to be prompted for Administrator credentials as well as whether the domain name is possible and if the user is prompted to enter and confirm the Directory Services Restore Mode (DSRM) password.

Parameters

-ADPrepCredential

Specifies the user name and password that corresponds to the account to be used for running operations (if they are required) to prepare Active Directory prior to the installation of this domain. Specify "(Get-Credential)" to prompt the user to supply a password.

Type:PSCredential
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-AllowDomainControllerReinstall

Specifies whether to continue installing this domain controller, despite the fact that another domain controller account with the same name is detected. By default, the Install-ADDSDomainController cmdlet does not continue installing if another domain controller with the same name is found.

Type:SwitchParameter
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-AllowPasswordReplicationAccountName

Specifies the names of user accounts, group accounts, and computer accounts whose passwords can be replicated to this RODC. Use an empty string ("") if you want to keep the value empty. By default, only the Allowed RODC Password Replication Group is allowed.

Type:String[]
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-ApplicationPartitionsToReplicate

Specifies the application directory partitions that DCPromo will replicate. Use the following format: "partition1" "partition2" "partitionN". Use * to replicate all application directory partitions.

Type:String[]
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-CreateDnsDelegation

Indicates whether to create a DNS delegation that references the new DNS server that you are installing along with the domain controller. Valid for Active Directory-integrated DNS only. If this parameter is specified then the DNS delegation is created. If the value of $false is specified then no DNS delegation is created. By default, the value for this parameter is computed automatically based on the environment.

Type:SwitchParameter
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Credential

Specifies the user name and password that corresponds to the account used to install the domain controller. Specify "(Get-Credential)" to prompt the user to supply a password.

Type:PSCredential
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-CriticalReplicationOnly

Specifies whether the AD DS installation operation performs only critical replication before reboot and then continues, skipping the noncritical (and potentially lengthy) portion of replication. The noncritical replication happens after the installation finishes and the computer reboots. By default, the cmdlet performs both critical and noncritical portions of the replication.

Type:SwitchParameter
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-DatabasePath

Specifies the fully qualified, non-Universal Naming Convention (UNC) path to a directory on a fixed disk of the local computer that will contain the domain database, for example, C:\Windows\NTDS. The default is %SYSTEMROOT%\NTDS.

Type:String
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-DelegatedAdministratorAccountName

Specifies the name of the user or group that will be the delegated administrator of this domain controller.

Type:String
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-DenyPasswordReplicationAccountName

Specifies the names of user accounts, group accounts, and computer accounts whose passwords are not to be replicated to this RODC. Use an empty string ("") if you do not want to deny the replication of credentials of any users or computers. By default, Administrators, Server Operators, Backup Operators, Account Operators, and the Denied RODC Password Replication Group are denied. By default, the Denied RODC Password Replication Group includes Cert Publishers, Domain Admins, Enterprise Admins, Enterprise Domain Controllers, Enterprise Read-Only Domain Controllers, Group Policy Creator Owners, the krbtgt account, and Schema Admins.

Type:String[]
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-DnsDelegationCredential

Specifies the user name and password (account credentials) for creating DNS delegation. This parameter is skipped if the value for the -CreateDnsDelegation parameter is either specified or computed to be $false.

Type:PSCredential
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-DomainName

Specifies the fully qualified domain name (FQDN) for the domain where the domain controller will be installed or added.

Type:String
Position:Named
Default value:<mandatory>
Required:True
Accept pipeline input:False
Accept wildcard characters:False

-Force

When this parameter is specified any warnings that might normally appear during the installation and addition of the domain controller will be suppressed to allow the cmdlet to complete its operation. This parameter can be useful to include when scripting installation.

Type:SwitchParameter
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-InstallationMediaPath

Indicates the location of the installation media that will be used to install a new domain controller.

Type:String
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-InstallDns

Specifies whether the DNS Server service should be installed and configured on the domain controller. For domain controller installation, if this parameter is left unspecified and the current domain already hosts and stores the DNS names for the domain, then the default for this parameter is $true and the DNS server will be installed. Otherwise, if DNS domain names are hosted outside of Active Directory, the default is $false and no DNS server will be installed.

To test if DNS domain names are hosted outside of Active Directory, this cmdlet uses a start of authority (SOA) type DNS query to ask the question "Does a zone exist for the domain name?" For example, if the value of -DomainName is "corp.contoso.com", Active Directory performs an SOA query for "corp.contoso.com" and ensures that the zone name in the response is " corp.contoso.com".

Type:SwitchParameter
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-LogPath

Specifies the fully qualified, non-UNC path to a directory on a fixed disk of the local computer that will contain the domain log files, for example, C:\Windows\Logs. The default is %SYSTEMROOT%\NTDS.

Type:String
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-MoveInfrastructureOperationMasterRoleIfNecessary

Use this parameter to transfer the infrastructure master role to the domain controller that you are creating in case the transfer is needed; in this case, make sure not to use the -NoGlobalCatalog switch parameter as well. Do not specify this parameter if you want the infrastructure master role to remain where it currently is.

Type:SwitchParameter
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-NoDnsOnNetwork

Specifies that DNS service is not available on the network. This parameter is used only when the IP setting of the network adapter for this computer is not configured with the name of a DNS server for name resolution. It indicates that a DNS server will be installed on this computer for name resolution. Otherwise, the IP settings of the network adapter must first be configured with the address of a DNS server.

Omitting this parameter (the default) indicates that the TCP/IP client settings of the network adapter on this server computer will be used to contact a DNS server. Therefore, if you are not specifying this parameter, ensure that TCP/IP client settings are first configured with a preferred DNS server address.

Type:SwitchParameter
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-NoGlobalCatalog

Specifies that the read-only domain controller (RODC) will not be a global catalog server. By default, the domain controller that you are installing is a global catalog server.

Type:SwitchParameter
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-NoRebootOnCompletion

If specified, the computer will not restart upon the completion of the operation to install the domain controller. By default, if this parameter is omitted the computer will restart upon the completion of the install operation. As a general rule, Microsoft support recommends that you not use this parameter except for testing or troubleshooting purposes because once configuration has completed the server will not function correctly as either a member server or a DC until it is rebooted.

Type:SwitchParameter
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-ReadOnlyReplica

Specifies whether to install the domain controller as an RODC for an existing domain.

Type:SwitchParameter
Position:Named
Default value:FALSE
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-ReplicationSourceDC

Specifies the name of the domain controller to be used as the source for replicating to this domain controller.

Type:String
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-SafeModeAdministratorPassword

Supplies the password for the administrator account when the computer is started in Safe Mode or a variant of Safe Mode, such as Directory Services Restore Mode. If no value is specified for this parameter, the cmdlet prompts you to enter and confirm a masked password. If specified with a value, the value must be a secure string.

Supplies the password for the administrator account when the computer is started in Safe Mode or a variant of Safe Mode, such as Directory Services Restore Mode. You must supply a password that meets the password complexity rules of the domain and the password cannot be blank. If specified with a value, the value must be a secure string.

If this parameter is not specified, the cmdlet prompts you to enter and confirm a masked password. This is the preferred usage when running the cmdlet interactively. If additionally there are no other arguments specified with the cmdlet, you will be prompted to enter a masked password for this parameter but no confirmation of the password entered will be made (which is not recommended as it could allow a mistyped password to be configured). Another available advanced option is to use the ConvertTo-SecureString cmdlet and specify the password string inline as unmasked console input, which is also not a recommended security best practice in production deployments.

Type:SecureString
Position:Named
Default value:<mandatory>
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-SiteName

Specifies the name of an existing site where you can place the new domain controller. The default value depends on the type of installation. For a new forest, the default is Default-First-Site-Name. For all other installations, the default is the site that is associated with the subnet that includes the IP address of this server. If no such site exists, the default is the site of the replication source domain controller.

Type:String
Position:Named
Default value:<mandatory>
Required:True
Accept pipeline input:False
Accept wildcard characters:False

-SkipAutoConfigureDns

Skips automatic configuration of DNS client settings, forwarders, and root hints. This parameter is in effect only if the DNS Server service is already installed.

Type:SwitchParameter
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-SystemKey

Specifies the system key for the media from which you replicate the data. The default is none.

Type:SecureString
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-SysvolPath

Specifies the fully qualified, non-UNC path to a directory on a fixed disk of the local computer that will contain the Sysvol data, for example, C:\Windows\SYSVOL. The default is %SYSTEMROOT%\SYSVOL.

Type:String
Position:Named
Default value:NULL
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-UseExistingAccount

Attaches a server to an existing RODC account. If specified, a member of the Domain Admins group or a delegated user can run this cmdlet.

Type:SwitchParameter
Position:Named
Default value:FALSE
Required:False
Accept pipeline input:False
Accept wildcard characters:False