functions/Test-DbaConnection.ps1
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#ValidationTags#Messaging,FlowControl,Pipeline,CodeStyle# function Test-DbaConnection { <# .SYNOPSIS Tests the connection to a single instance. .DESCRIPTION Tests the ability to connect to an SQL Server instance outputting information about the server and instance. .PARAMETER SqlInstance The SQL Server Instance to test connection .PARAMETER Credential Credential object used to connect to the Computer as a different user .PARAMETER SqlCredential Allows you to login to servers using SQL Logins as opposed to Windows Auth/Integrated/Trusted. To use: $scred = Get-Credential, then pass $scred object to the -SqlCredential parameter. Windows Authentication will be used if SqlCredential is not specified. SQL Server does not accept Windows credentials being passed as credentials. To connect as a different Windows user, run PowerShell as that user. .PARAMETER Silent Replaces user friendly yellow warnings with bloody red exceptions of doom! Use this if you want the function to throw terminating errors you want to catch. .EXAMPLE Test-DbaConnection SQL2016 ComputerName : SQL2016 InstanceName : MSSQLSERVER SqlInstance : sql2016 SqlVersion : 13.0.4001 ConnectingAsUser : BASE\ctrlb ConnectSuccess : True AuthType : Windows Authentication AuthScheme : KERBEROS TcpPort : 1433 IPAddress : 10.2.1.5 NetBiosName : sql2016.base.local IsPingable : True PSRemotingAccessible : True DomainName : base.local LocalWindows : 10.0.15063.0 LocalPowerShell : 5.1.15063.502 LocalCLR : 4.0.30319.42000 LocalSMOVersion : 13.0.0.0 LocalDomainUser : True LocalRunAsAdmin : False .NOTES Tags: CIM, Test, Connection Author: Chrissy LeMaire Website: https://dbatools.io Copyright: (C) Chrissy LeMaire, clemaire@gmail.com License: GNU GPL v3 https://opensource.org/licenses/GPL-3.0 #> [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [Alias("ServerInstance", "SqlServer")] [DbaInstance[]]$SqlInstance, [PSCredential]$Credential, [PSCredential]$SqlCredential, [switch]$Silent ) process { foreach ($instance in $SqlInstance) { # Get local enviornment Write-Message -Level Verbose -Message "Getting local enivornment information" $localInfo = [pscustomobject]@{ Windows = [environment]::OSVersion.Version.ToString() PowerShell = $PSVersionTable.PSversion.ToString() CLR = $PSVersionTable.CLRVersion.ToString() SMO = ((([AppDomain]::CurrentDomain.GetAssemblies() | Where-Object { $_.Fullname -like "Microsoft.SqlServer.SMO,*" }).FullName -Split ", ")[1]).TrimStart("Version=") DomainUser = $env:computername -ne $env:USERDOMAIN RunAsAdmin = ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator") } try { <# gather following properties #> <# InputName : ComputerName : IPAddress : DNSHostName : DNSDomain : Domain : DNSHostEntry : FQDN : FullComputerName : #> $resolved = Resolve-DbaNetworkName -ComputerName $instance.ComputerName -Credential $Credential } catch { Stop-Function -Message "Unable to resolve server information" -Category ConnectionError -Target $instance -ErrorRecord $_ -Continue } # Test for WinRM #Test-WinRM neh Write-Message -Level Verbose -Message "Checking remote acccess" try { $null = Invoke-Command2 -ComputerName $instance.ComputerName -Credential $Credential -ScriptBlock { Get-ChildItem } -ErrorAction Stop $remoting = $true } catch { $remoting = $_ } # Test Connection first using Test-Connection which requires ICMP access then failback to tcp if pings are blocked Write-Message -Level Verbose -Message "Testing ping to $($instance.ComputerName)" $pingable = Test-Connection -ComputerName $instance.ComputerName -Count 1 -Quiet # SQL Server connection if ($instance.InstanceName -ne "MSSQLSERVER") { $sqlport = "N/A" } else { Write-Message -Level Verbose -Message "Testing raw socket connection to default SQL port" $tcp = New-Object System.Net.Sockets.TcpClient try { $tcp.Connect($baseaddress, 1433) $tcp.Close() $tcp.Dispose() $sqlport = $true } catch { $sqlport = $false } } try { $server = Connect-SqlInstance -SqlInstance $instance.FullSmoName -SqlCredential $SqlCredential $connectSuccess = $true } catch { $connectSuccess = $false Stop-Function -Message "Issue connection to SQL Server on $instance" -Category ConnectionError -Target $instance -ErrorRecord $_ -Continue } $username = $server.ConnectionContext.TrueLogin if ($username -like "*\*") { $authType = "Windows Authentication" } else { $authType = "SQL Authentication" } # TCP Port try { $tcpport = (Get-DbaTcpPort -SqlInstance $server -Silent).Port } catch { $tcpport = $_ } # Auth Scheme try { $authscheme = (Test-DbaConnectionAuthScheme -SqlInstance $server -WarningVariable authwarning -WarningAction SilentlyContinue).AuthScheme } catch { $authscheme = $_ } if ($authwarning) { $authscheme = "N/A" } [pscustomobject]@{ ComputerName = $resolved.ComputerName InstanceName = $instance.InstanceName SqlInstance = $instance.FullSmoName SqlVersion = $server.Version ConnectingAsUser = $username ConnectSuccess = $connectSuccess AuthType = $authType AuthScheme = $authscheme TcpPort = $tcpport IPAddress = $resolved.IPAddress NetBiosName = $resolved.FullComputerName IsPingable = $pingable PSRemotingAccessible = $remoting DomainName = $resolved.Domain LocalWindows = $localInfo.Windows LocalPowerShell = $localInfo.PowerShell LocalCLR = $localInfo.CLR LocalSMOVersion = $localInfo.SMO LocalDomainUser = $localInfo.DomainUser LocalRunAsAdmin = $localInfo.RunAsAdmin } } } end { Test-DbaDeprecation -DeprecatedOn "1.0.0" -Silent:$false -Alias Test-SqlConnection } } |