functions/Export-DbaLinkedServer.ps1
|
function Export-DbaLinkedServer { <# .SYNOPSIS Exports linked servers INCLUDING PASSWORDS, unless specified otherwise, to sql file. .DESCRIPTION Exports linked servers INCLUDING PASSWORDS, unless specified otherwise, to sql file. Requires remote Windows access if exporting the password. .PARAMETER SqlInstance Source SQL Server. You must have sysadmin access and server version must be SQL Server version 2005 or higher. .PARAMETER SqlCredential Login to the target instance using alternative linked servers. Windows and SQL Authentication supported. Accepts credential objects (Get-Credential) .PARAMETER Credential Login to the target OS using alternative linked servers. Accepts credential objects (Get-Credential) .PARAMETER Path The path to the exported sql file. .PARAMETER LinkedServer The linked server(s) to export. If unspecified, all linked servers will be processed. .PARAMETER InputObject Allow credentials to be piped in from Get-DbaLinkedServer .PARAMETER ExcludePassword Exports the linked server without any sensitive information. .PARAMETER Append Append to Path .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: LinkedServer 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 .EXAMPLE PS C:\> Export-DbaLinkedServer -SqlInstance sql2017 -Path C:\temp\ls.sql Exports the linked servers, including passwords, from sql2017 to the file C:\temp\ls.sql .EXAMPLE PS C:\> Export-DbaLinkedServer -SqlInstance sql2017 -Path C:\temp\ls.sql -ExcludePassword Exports the linked servers, without passwords, from sql2017 to the file C:\temp\ls.sql #> [CmdletBinding()] param ( [Parameter(Mandatory, ValueFromPipeline)] [Alias("ServerInstance", "SqlServer")] [DbaInstanceParameter[]]$SqlInstance, [string[]]$LinkedServer, [PSCredential]$SqlCredential, [PSCredential]$Credential, [string]$Path, [switch]$ExcludePassword, [switch]$Append, [Microsoft.SqlServer.Management.Smo.LinkedServer[]]$InputObject, [switch]$EnableException ) process { foreach ($instance in $SqlInstance) { try { $server = Connect-SqlInstance -SqlInstance $instance -SqlCredential $sqlcredential -MinimumVersion 9 $InputObject += $server.LinkedServers } catch { Stop-Function -Message "Error occured while establishing connection to $instance" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue } if ($LinkedServer) { $InputObject = $InputObject | Where-Object Name -in $LinkedServer } if (-not $InputObject) { Write-Message -Level Verbose -Message "Nothing to export" continue } if (!(Test-SqlSa -SqlInstance $instance -SqlCredential $sqlcredential)) { Stop-Function -Message "Not a sysadmin on $instance. Quitting." -Target $instance -Continue } Write-Message -Level Verbose -Message "Getting NetBios name for $instance." $sourceNetBios = Resolve-NetBiosName $server Write-Message -Level Verbose -Message "Checking if Remote Registry is enabled on $instance." try { Invoke-Command2 -Raw -Credential $Credential -ComputerName $sourceNetBios -ScriptBlock { Get-ItemProperty -Path "HKLM:\SOFTWARE\" } -ErrorAction Stop } catch { Stop-Function -Message "Can't connect to registry on $instance." -Target $sourceNetBios -ErrorRecord $_ return } if (-not (Test-Bound -ParameterName Path)) { $timenow = (Get-Date -uformat "%m%d%Y%H%M%S") $mydocs = [Environment]::GetFolderPath('MyDocuments') $path = "$mydocs\$($server.name.replace('\', '$'))-$timenow-linkedserver.sql" } $sql = @() if ($ExcludePassword) { $sql += $InputObject.Script() } else { try { $decrypted = Get-DecryptedObject -SqlInstance $server -Type LinkedServer } catch { Stop-Function -Continue -Message "Failure" -ErrorRecord $_ } foreach ($ls in $InputObject) { $currentls = $decrypted | Where-Object Name -eq $ls.Name if ($currentls.Password) { $password = $currentls.Password.Replace("'", "''") $tempsql = $ls.Script() $tempsql = $tempsql.Replace(' /* For security reasons the linked server remote logins password is changed with ######## */', '') $tempsql = $tempsql.Replace("rmtpassword='########'", "rmtpassword='$password'") $sql += $tempsql } else { $sql += $ls.Script() } } } try { if ($Append) { Add-Content -Path $path -Value $sql } else { Set-Content -Path $path -Value $sql } Get-ChildItem -Path $path } catch { Stop-Function -Message "Can't write to $path" -ErrorRecord $_ -Continue } } } } |