Rename to check-dns.ps1

Scripts/check-dns.ps1

@@ -0,0 +1,41 @@
+<#
+.SYNOPSIS
+	Checks the DNS resolution 
+.DESCRIPTION
+	This script checks the DNS resolution with frequently used domain names.
+.EXAMPLE
+	PS> ./check-dns
+	✔️ DNS resolves 11.8 domains/sec (177 domains in 15 sec)
+.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)
+	$Reply = "DNS resolves $Average domains/sec ($Count in $Elapsed sec)"
+	"✔️ $Reply"
+	& "$PSScriptRoot/speak-english.ps1" "$Reply"
+	exit 0 # success
+} catch {
+	"⚠️ Error: $($Error[0]) ($($MyInvocation.MyCommand.Name):$($_.InvocationInfo.ScriptLineNumber))"
+	exit 1
+}