272 lines
8.6 KiB
PowerShell
272 lines
8.6 KiB
PowerShell
#requires -Version 3.0 -RunAsAdministrator
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<#
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.SYNOPSIS
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Enable DNS-over-HTTPS (DoH) if device is not domain-joined
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.DESCRIPTION
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Enable DNS-over-HTTPS (DoH) if device is not domain-joined
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It enables the Cloudflare DNS Servers, even if DoH is not working yet.
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IPv6 Support is optional.
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.PARAMETER IPv6
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Enable IPv6 Support, IPv6 Servers will be added to the server list
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.EXAMPLE
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PS C:\> .\Enable-DNSOverHTTPS.ps1
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Enable DNS-over-HTTPS (DoH) if device is not domain-joined for IPv4 only
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.EXAMPLE
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PS C:\> .\Enable-DNSOverHTTPS.ps1 -IPv6
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Enable DNS-over-HTTPS (DoH) if device is not domain-joined for IPv4 and IPv6
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.NOTES
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Only the Insider Build of Windows 10 supports DoH!
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But we configure it anyway!
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The Cloudflare servers are used for regular DNS resolution and as soon as DoH is supported,
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we can configure and use it anyway.
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A future version of this script might support additional parameters, like DohFlags
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You can also change the servers below to any service you like, e.g. Google DNS or Quad9 from IBM.
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The Bool as return was requested by a customer, and the exit code (0 or 1) is implemented for our bootstrap setup
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.LINK
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https://1.1.1.1/dns/
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.LINK
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https://techcommunity.microsoft.com/t5/networking-blog/windows-insiders-can-now-test-dns-over-https/ba-p/1381282
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#>
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[CmdletBinding(ConfirmImpact = 'None')]
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[OutputType([bool])]
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param
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(
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[Parameter(ValueFromPipeline,
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ValueFromPipelineByPropertyName)]
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[Alias('IP6', '6')]
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[switch]
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$IPv6
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)
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begin
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{
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#region Defaults
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$SCT = 'SilentlyContinue'
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$STP = 'Stop'
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$CNT = 'Continue'
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# Save the infos from the switches
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if (($PSCmdlet.MyInvocation.BoundParameters['Verbose']).IsPresent)
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{
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$IsVerbose = $true
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}
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else
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{
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$IsVerbose = $false
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}
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if (($PSCmdlet.MyInvocation.BoundParameters['Debug']).IsPresent)
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{
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$IsDebug = $true
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}
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else
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{
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$IsDebug = $false
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}
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if (($PSCmdlet.MyInvocation.BoundParameters['WhatIf']).IsPresent)
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{
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$IsWhatIf = $true
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}
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else
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{
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$IsWhatIf = $false
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}
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#endregion Defaults
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#region ServerAddresses
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# Create an Empty Object
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$ServerAddresses = @()
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# IPv4 DNS Servers to use
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$ServerAddressesIPv4 = @(
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'1.1.1.1'
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'1.0.0.1'
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)
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# Add the IPv4 Servers to the Object
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$ServerAddresses += $ServerAddressesIPv4
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if ((($PSCmdlet.MyInvocation.BoundParameters['IPv6']).IsPresent) -eq $true)
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{
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Write-Verbose -Message 'IPv6 Servers will be added to the serverlist'
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# IPv6 DNS Servers to use
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$ServerAddressesIPv6 = @(
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'2606:4700:4700::1111'
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'2606:4700:4700::1001'
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)
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# Add the IPv6 Servers to the Object
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$ServerAddresses += $ServerAddressesIPv6
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}
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#endregion ServerAddresses
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}
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process
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{
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#region DoH
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# Enable DNS-over-HTTPS for IPv4 if device is not domain-joined
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$paramGetCimInstance = @{
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ClassName = 'CIM_ComputerSystem'
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Verbose = $IsVerbose
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Debug = $IsDebug
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ErrorAction = $STP
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}
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if (((Get-CimInstance @paramGetCimInstance).PartOfDomain) -eq $false)
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{
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try
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{
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# Temporarily key
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$paramNewItemProperty = @{
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Path = 'HKLM:\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters'
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Name = 'EnableAutoDoh'
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Value = 2
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PropertyType = 'DWord'
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Force = $true
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WhatIf = $IsWhatIf
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Verbose = $IsVerbose
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Debug = $IsDebug
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ErrorAction = $CNT
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}
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$null = (New-ItemProperty @paramNewItemProperty)
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$paramGetNetAdapter = @{
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Verbose = $IsVerbose
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Debug = $IsDebug
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Physical = $true
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ErrorAction = $SCT
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}
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$MACAddress = ((Get-NetAdapter @paramGetNetAdapter).MacAddress)
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$paramGetNetIPConfiguration = @{
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Verbose = $IsVerbose
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Debug = $IsDebug
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ErrorAction = $SCT
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}
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$IpConfig = (Get-NetIPConfiguration @paramGetNetIPConfiguration | Where-Object -FilterScript {
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$MACAddress -eq $_.NetAdapter.MacAddress
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})
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$paramSetDnsClientServerAddress = @{
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ServerAddresses = $ServerAddresses
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Verbose = $IsVerbose
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Debug = $IsDebug
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ErrorAction = $CNT
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}
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$null = ($IpConfig | Set-DnsClientServerAddress @paramSetDnsClientServerAddress)
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$paramClearDnsClientCache = @{
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Verbose = $IsVerbose
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Debug = $IsDebug
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ErrorAction = $SCT
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}
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$null = (Clear-DnsClientCache @paramClearDnsClientCache)
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$paramRegisterDnsClient = @{
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Verbose = $IsVerbose
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Debug = $IsDebug
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ErrorAction = $SCT
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}
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$null = (Register-DnsClient @paramRegisterDnsClient)
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}
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catch
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{
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# Get error record
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[Management.Automation.ErrorRecord]$e = $_
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# retrieve information about runtime error
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$info = [PSCustomObject]@{
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Exception = $e.Exception.Message
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Reason = $e.CategoryInfo.Reason
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Target = $e.CategoryInfo.TargetName
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Script = $e.InvocationInfo.ScriptName
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Line = $e.InvocationInfo.ScriptLineNumber
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Column = $e.InvocationInfo.OffsetInLine
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}
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# output information. Post-process collected info, and log info (optional)
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$info | Out-String | Write-Verbose
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$paramWriteError = @{
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Message = $e.Exception.Message
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ErrorAction = $CNT
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Exception = $e.Exception
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TargetObject = $e.CategoryInfo.TargetName
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}
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Write-Error @paramWriteError
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}
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}
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else
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{
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$paramWriteError = @{
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Message = 'Sorry, this computer seems to be part of a Active Directory domain!'
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Exception = 'Active Directory Domain Members are not supported'
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Category = 'NotEnabled'
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TargetObject = $env:COMPUTERNAME
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ErrorAction = $CNT
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}
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Write-Error @paramWriteError
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# Return the Bool
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Write-Output -InputObject $false
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# Unclean exit
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exit 1
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}
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#endregion DoH
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}
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end
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{
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# Return the Bool
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Write-Output -InputObject $true
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# Clean exit
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exit 0
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}
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#region LICENSE
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<#
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BSD 3-Clause License
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Copyright (c) 2021, enabling Technology
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#>
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#endregion LICENSE
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#region DISCLAIMER
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<#
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DISCLAIMER:
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- Use at your own risk, etc.
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- This is open-source software, if you find an issue try to fix it yourself. There is no support and/or warranty in any kind
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- This is a third-party Software
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- The developer of this Software is NOT sponsored by or affiliated with Microsoft Corp (MSFT) or any of its subsidiaries in any way
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- The Software is not supported by Microsoft Corp (MSFT)
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- By using the Software, you agree to the License, Terms, and any Conditions declared and described above
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- If you disagree with any of the Terms, and any Conditions declared: Just delete it and build your own solution
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#>
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#endregion DISCLAIMER
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