functions/Remove-DbaNetworkCertificate.ps1
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#ValidationTags#Messaging,FlowControl,Pipeline,CodeStyle# function Remove-DbaNetworkCertificate { <# .SYNOPSIS Removes the network certificate for SQL Server instance .DESCRIPTION Removes the network certificate for SQL Server instance. This setting is found in Configuration Manager. .PARAMETER SqlInstance The target SQL Server - defaults to localhost. If target is a cluster, you must also specify InstanceClusterName (see below) .PARAMETER Credential Allows you to login to the computer (not sql instance) using alternative credentials. .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 Remove-DbaNetworkCertificate Removes the Network Certificate for the default instance (MSSQLSERVER) on localhost .EXAMPLE Remove-DbaNetworkCertificate -SqlInstance sql1\SQL2008R2SP2 Removes the Network Certificate for the SQL2008R2SP2 instance on sql1 .EXAMPLE Remove-DbaNetworkCertificate -SqlInstance localhost\SQL2008R2SP2 -WhatIf Shows what would happen if the command were run .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] $Credential, [switch] [Alias('Silent')]$EnableException ) process { 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 } Write-Message -Level Output -Message "Connecting to SQL WMI on $($instance.ComputerName)" try { $sqlwmi = Invoke-ManagedComputerCommand -ComputerName $resolved.FQDN -ScriptBlock { $wmi.Services } -Credential $Credential -ErrorAction Stop | Where-Object DisplayName -eq "SQL Server ($($instance.InstanceName))" } catch { Stop-Function -Message "Failed to access $instance" -Target $instance -Continue -ErrorRecord $_ } $regroot = ($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] $regpath = "Registry::HKEY_LOCAL_MACHINE\$($args[0])\MSSQLServer\SuperSocketNetLib" $cert = (Get-ItemProperty -Path $regpath -Name Certificate).Certificate Set-ItemProperty -Path $regpath -Name Certificate -Value $null [pscustomobject]@{ ComputerName = $env:COMPUTERNAME InstanceName = $instancename SqlInstance = $vsname ServiceAccount = $serviceaccount RemovedThumbprint = $cert.Thumbprint } } if ($PScmdlet.ShouldProcess("local", "Connecting to $ComputerName to remove the cert")) { try { Invoke-Command2 -ComputerName $resolved.fqdn -Credential $Credential -ArgumentList $regroot, $serviceaccount, $instancename, $vsname -ScriptBlock $scriptblock -ErrorAction Stop } catch { Stop-Function -Message "Failed to connect to $($resolved.fqdn) using PowerShell remoting!" -ErrorRecord $_ -Target $instance -Continue } } } } } |