<# .SYNOPSIS Installs Unbound server (needs admin rights) .DESCRIPTION This PowerShell script installs Unbound, a validating, recursive, caching DNS resolver. It needs admin rights. .EXAMPLE PS> ./install-unbound-server.ps1 .LINK https://github.com/fleschutz/PowerShell .NOTES Author: Markus Fleschutz | License: CC0 #> #Requires -RunAsAdministrator try { $StopWatch = [system.diagnostics.stopwatch]::startNew() "⏳ (1/10) Updating package infos..." & sudo apt update -y if ($lastExitCode -ne "0") { throw "'apt update' failed" } "⏳ (2/10) Installing the Unbound packages..." & sudo apt install unbound unbound-anchor -y if ($lastExitCode -ne "0") { throw "'apt install unbound' failed" } "⏳ (3/10) Setting up Unbound..." & sudo unbound-control-setup if ($lastExitCode -ne "0") { throw "'unbound-control-setup' failed" } "⏳ (4/10) Updating DNSSEC Root Trust Anchors..." & sudo unbound-anchor if ($lastExitCode -ne "0") { throw "'unbound-anchor' failed" } "⏳ (5/10) Checking config file..." & unbound-checkconf "$PSScriptRoot/../data/unbound.conf" if ($lastExitCode -ne "0") { throw "'unbound-checkconf' failed - check the syntax" } "⏳ (6/10) Copying config file to /etc/unbound/unbound.conf ..." & sudo cp "$PSScriptRoot/../data/unbound.conf" /etc/unbound/unbound.conf if ($lastExitCode -ne "0") { throw "'cp' failed" } "⏳ (7/10) Stopping default DNS cache daemon systemd-resolved..." & sudo systemctl stop systemd-resolved & sudo systemctl disable systemd-resolved "⏳ (8/10) (Re-)starting Unbound..." & sudo unbound-control stop & sudo unbound-control start if ($lastExitCode -ne "0") { throw "'unbound-control start' failed" } "⏳ (9/10) Checking status of Unbound..." & sudo unbound-control status if ($lastExitCode -ne "0") { throw "'unbound-control status' failed" } "⏳ (10/10) Training Unbound with 100 popular domain names..." & "$PSScriptRoot/check-dns.ps1" if ($lastExitCode -ne "0") { throw "'unbound-control status' failed" } [int]$Elapsed = $StopWatch.Elapsed.TotalSeconds "✅ Installed Unbound in $Elapsed sec" exit 0 # success } catch { "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])" exit 1 }