functions/Set-DbaNetworkCertificate.ps1
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#ValidationTags#Messaging,FlowControl,Pipeline,CodeStyle# function Set-DbaNetworkCertificate { <# .SYNOPSIS Sets the network certificate for SQL Server instance .DESCRIPTION Sets the network certificate for SQL Server instance. This setting is found in Configuration Manager. This command also grants read permissions for the service account on the certificate's private key. References: http://sqlmag.com/sql-server/7-steps-ssl-encryption https://azurebi.jppp.org/2016/01/23/using-lets-encrypt-certificates-for-secure-sql-server-connections/ https://blogs.msdn.microsoft.com/sqlserverfaq/2016/09/26/creating-and-registering-ssl-certificates/ .PARAMETER SqlInstance The target SQL Server - defaults to localhost. .PARAMETER Credential Allows you to login to the computer (not sql instance) using alternative credentials. .PARAMETER Certificate The target certificate object .PARAMETER Thumbprint The thumbprint of the target certificate .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .PARAMETER WhatIf Shows what would happen if the command were to run. No actions are actually performed. .PARAMETER Confirm Prompts you for confirmation before executing any changing operations within the command. .EXAMPLE New-DbaComputerCertificate | Set-DbaNetworkCertificate -SqlInstance localhost\SQL2008R2SP2 Creates and imports a new certificate signed by an Active Directory CA on localhost then sets the network certificate for the SQL2008R2SP2 to that newly created certificate. .EXAMPLE Set-DbaNetworkCertificate -SqlInstance sql1\SQL2008R2SP2 -Thumbprint 1223FB1ACBCA44D3EE9640F81B6BA14A92F3D6E2 Sets the network certificate for the SQL2008R2SP2 instance to the certificate with the thumbprint of 1223FB1ACBCA44D3EE9640F81B6BA14A92F3D6E2 in LocalMachine\My on sql1 .NOTES Tags: Certificate Author: Chrissy LeMaire (@cl), netnerds.net Website: https://dbatools.io Copyright (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT #> [CmdletBinding(SupportsShouldProcess, ConfirmImpact = "Low", DefaultParameterSetName = 'Default')] param ( [Parameter(ValueFromPipeline)] [Alias("ServerInstance", "SqlServer", "ComputerName")] [DbaInstanceParameter[]] $SqlInstance = $env:COMPUTERNAME, [PSCredential] $Credential, [parameter(Mandatory, ParameterSetName = "Certificate", ValueFromPipeline)] [System.Security.Cryptography.X509Certificates.X509Certificate2] $Certificate, [parameter(Mandatory, ParameterSetName = "Thumbprint")] [string] $Thumbprint, [switch] [Alias('Silent')]$EnableException ) process { if (Test-FunctionInterrupt) { return } $Certificate if (!$Certificate -and !$Thumbprint) { Stop-Function -Message "You must specify a certificate or thumbprint" return } if (!$Thumbprint) { Write-Message -Level SomewhatVerbose -Message "Getting thumbprint" $Thumbprint = $Certificate.Thumbprint } foreach ($instance in $sqlinstance) { Write-Message -Level VeryVerbose -Message "Processing $instance" -Target $instance $null = Test-ElevationRequirement -ComputerName $instance -Continue Write-Message -Level Verbose -Message "Resolving hostname" $resolved = $null $resolved = Resolve-DbaNetworkName -ComputerName $instance -Turbo if ($null -eq $resolved) { Stop-Function -Message "Can't resolve $instance" -Target $instance -Continue -Category InvalidArgument } $computername = $instance.ComputerName $instancename = $instance.instancename Write-Message -Level Output -Message "Connecting to SQL WMI on $computername" try { $sqlwmi = Invoke-ManagedComputerCommand -ComputerName $resolved.FQDN -ScriptBlock { $wmi.Services } -Credential $Credential -ErrorAction Stop | Where-Object DisplayName -eq "SQL Server ($instancename)" } catch { Stop-Function -Message "Failed to access $instance" -Target $instance -Continue -ErrorRecord $_ } if (-not $sqlwmi) { Stop-Function -Message "Cannot find $instancename on $computerName" -Continue -Category ObjectNotFound -Target $instance } $regroot = ($sqlwmi.AdvancedProperties | Where-Object Name -eq REGROOT).Value $vsname = ($sqlwmi.AdvancedProperties | Where-Object Name -eq VSNAME).Value $instancename = $sqlwmi.DisplayName.Replace('SQL Server (', '').Replace(')', '') # Don't clown, I don't know regex :( $serviceaccount = $sqlwmi.ServiceAccount if ([System.String]::IsNullOrEmpty($regroot)) { $regroot = $sqlwmi.AdvancedProperties | Where-Object { $_ -match 'REGROOT' } $vsname = $sqlwmi.AdvancedProperties | Where-Object { $_ -match 'VSNAME' } if (![System.String]::IsNullOrEmpty($regroot)) { $regroot = ($regroot -Split 'Value\=')[1] $vsname = ($vsname -Split 'Value\=')[1] } else { Stop-Function -Message "Can't find instance $vsname on $instance" -Continue -Category ObjectNotFound -Target $instance } } if ([System.String]::IsNullOrEmpty($vsname)) { $vsname = $instance } Write-Message -Level Output -Message "Regroot: $regroot" -Target $instance Write-Message -Level Output -Message "ServiceAcct: $serviceaccount" -Target $instance Write-Message -Level Output -Message "InstanceName: $instancename" -Target $instance Write-Message -Level Output -Message "VSNAME: $vsname" -Target $instance $scriptblock = { $regroot = $args[0] $serviceaccount = $args[1] $instancename = $args[2] $vsname = $args[3] $Thumbprint = $args[4] $regpath = "Registry::HKEY_LOCAL_MACHINE\$regroot\MSSQLServer\SuperSocketNetLib" $oldthumbprint = (Get-ItemProperty -Path $regpath -Name Certificate).Certificate $cert = Get-ChildItem Cert:\LocalMachine -Recurse -ErrorAction Stop | Where-Object { $_.Thumbprint -eq $Thumbprint } if ($null -eq $cert) { Write-Warning "Certificate does not exist on $env:COMPUTERNAME" return } $permission = $serviceaccount, "Read", "Allow" $accessRule = New-Object -TypeName System.Security.AccessControl.FileSystemAccessRule -ArgumentList $permission $keyPath = $env:ProgramData + "\Microsoft\Crypto\RSA\MachineKeys\" $keyName = $cert.PrivateKey.CspKeyContainerInfo.UniqueKeyContainerName $keyFullPath = $keyPath + $keyName $acl = Get-Acl -Path $keyFullPath $null = $acl.AddAccessRule($accessRule) Set-Acl -Path $keyFullPath -AclObject $acl if ($acl) { Set-ItemProperty -Path $regpath -Name Certificate -Value $Thumbprint.ToString().ToLower() # to make it compat with SQL config } else { Write-Warning "Read-only permissions could not be granted to certificate" return } if (![System.String]::IsNullOrEmpty($oldthumbprint)) { $notes = "Granted $serviceaccount read access to certificate private key. Replaced thumbprint: $oldthumbprint." } else { $notes = "Granted $serviceaccount read access to certificate private key" } $newthumbprint = (Get-ItemProperty -Path $regpath -Name Certificate).Certificate [pscustomobject]@{ ComputerName = $env:COMPUTERNAME InstanceName = $instancename SqlInstance = $vsname ServiceAccount = $serviceaccount CertificateThumbprint = $newthumbprint Notes = $notes } } if ($PScmdlet.ShouldProcess("local", "Connecting to $instanceName to import new cert")) { try { Invoke-Command2 -Raw -ComputerName $resolved.fqdn -Credential $Credential -ArgumentList $regroot, $serviceaccount, $instancename, $vsname, $Thumbprint -ScriptBlock $scriptblock -ErrorAction Stop } catch { Stop-Function -Message "Failed to connect to $($resolved.fqdn) using PowerShell remoting!" -ErrorRecord $_ -Target $instance -Continue } } } } } |