functions/Get-DbaNetworkCertificate.ps1
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function Get-DbaNetworkCertificate { <# .SYNOPSIS Simplifies finding computer certificates that are candidates for using with SQL Server's network encryption .DESCRIPTION Gets computer certificates on localhost that are candidates for using with SQL Server's network encryption .PARAMETER ComputerName The target SQL Server - defaults to localhost. If target is a cluster, you must specify the distinct nodes. .PARAMETER Credential Allows you to login to $ComputerName using alternative credentials. .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .NOTES Tags: Certificate Website: https://dbatools.io Copyright: (C) Chrissy LeMaire, clemaire@gmail.com License: GNU GPL v3 https://opensource.org/licenses/GPL-3.0 .EXAMPLE Get-DbaNetworkCertificate Gets computer certificates on localhost that are candidates for using with SQL Server's network encryption .EXAMPLE Get-DbaNetworkCertificate -ComputerName sql2016 Gets computer certificates on sql2016 that are being used for SQL Server network encryption #> [CmdletBinding()] param ( [parameter(ValueFromPipeline)] [Alias("ServerInstance", "SqlServer", "SqlInstance")] [DbaInstanceParameter[]]$ComputerName = $env:COMPUTERNAME, [PSCredential]$Credential, [switch][Alias('Silent')]$EnableException ) process { foreach ($computer in $computername) { Write-Message -Level Verbose -Message "Connecting to SQL WMI on $($computer.ComputerName)" try { $sqlwmis = Invoke-ManagedComputerCommand -ComputerName $computer.ComputerName -ScriptBlock { $wmi.Services } -Credential $Credential -ErrorAction Stop | Where-Object DisplayName -match "SQL Server \(" } catch { Stop-Function -Message $_ -Target $sqlwmi -Continue } foreach ($sqlwmi in $sqlwmis) { $regroot = ($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 { Write-Message -Level Warning -Message "Can't find instance $vsname on $env:COMPUTERNAME" return } } if ([System.String]::IsNullOrEmpty($vsname)) { $vsname = $computer } Write-Message -Level Verbose -Message "Regroot: $regroot" Write-Message -Level Verbose -Message "ServiceAcct: $serviceaccount" Write-Message -Level Verbose -Message "InstanceName: $instancename" Write-Message -Level Verbose -Message "VSNAME: $vsname" $scriptblock = { $regroot = $args[0] $serviceaccount = $args[1] $instancename = $args[2] $vsname = $args[3] $regpath = "Registry::HKEY_LOCAL_MACHINE\$regroot\MSSQLServer\SuperSocketNetLib" $thumbprint = (Get-ItemProperty -Path $regpath -Name Certificate -ErrorAction SilentlyContinue).Certificate try { $cert = Get-ChildItem Cert:\LocalMachine -Recurse -ErrorAction Stop | Where-Object Thumbprint -eq $Thumbprint } catch { # Don't care - sometimes there's errors that are thrown for apparent good reason } if (!$cert) { continue } [pscustomobject]@{ ComputerName = $env:COMPUTERNAME InstanceName = $instancename SqlInstance = $vsname ServiceAccount = $serviceaccount FriendlyName = $cert.FriendlyName DnsNameList = $cert.DnsNameList Thumbprint = $cert.Thumbprint Generated = $cert.NotBefore Expires = $cert.NotAfter IssuedTo = $cert.Subject IssuedBy = $cert.Issuer Certificate = $cert } } Write-Message -Level Verbose -Message "Connecting to $computer to get a list of certs" try { Invoke-Command2 -ComputerName $computer.ComputerName -Credential $Credential -ArgumentList $regroot, $serviceaccount, $instancename, $vsname -ScriptBlock $scriptblock -ErrorAction Stop | Select-DefaultView -ExcludeProperty Certificate } catch { Stop-Function -Message $_ -ErrorRecord $_ -Target $ComputerName -Continue } } } } } |