<# .SYNOPSIS check-dns-resolution.ps1 .DESCRIPTION Checks the DNS resolution with frequently used domain names. .EXAMPLE PS> .\check-dns-resolution.ps1 .LINK https://github.com/fleschutz/PowerShell .NOTES Author: Markus Fleschutz · License: CC0 #> try { $StopWatch = [system.diagnostics.stopwatch]::startNew() write-progress "Reading Data/domain-names.csv..." $PathToRepo = "$PSScriptRoot/.." $Table = import-csv "$PathToRepo/Data/domain-names.csv" foreach($Row in $Table) { write-progress "Resolving $($Row.Domain) ..." if ($IsLinux) { $Ignore = nslookup $Row.Domain } else { $Ignore = resolve-dnsName $Row.Domain } } $Count = $Table.Length [int]$Elapsed = $StopWatch.Elapsed.TotalSeconds $Average = [math]::round($Count / $Elapsed, 1) "✔️ $Average domains/s ($Count domains resolved in $Elapsed sec)" exit 0 } catch { "⚠️ Error: $($Error[0]) ($($MyInvocation.MyCommand.Name):$($_.InvocationInfo.ScriptLineNumber))" exit 1 }