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Update check-dns.ps1

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Markus Fleschutz 2023-03-20 08:08:54 +01:00
parent 90e5fc9398
commit 7dc18b5b00
1 changed files with 14 additions and 14 deletions
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Scripts/check-dns.ps1
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@ -1,11 +1,11 @@
<# <#
.SYNOPSIS .SYNOPSIS
Checks the DNS resolution Check DNS resolution
.DESCRIPTION .DESCRIPTION
This PowerShell script measures the DNS resolution speed by using 200 popular domains. This PowerShell script measures and prints the DNS resolution speed by using 200 popular domains.
.EXAMPLE .EXAMPLE
PS> ./check-dns PS> ./check-dns
✅ DNS resolution is 440.5 domains per second ✅ DNS resolves 156.5 domains per second
.LINK .LINK
https://github.com/fleschutz/PowerShell https://github.com/fleschutz/PowerShell
.NOTES .NOTES
@ -14,24 +14,24 @@
try { try {
Write-Progress "⏳ Resolving 200 popular domains..." Write-Progress "⏳ Resolving 200 popular domains..."
$Table = Import-CSV "$PSScriptRoot/../Data/popular-domains.csv" $table = Import-CSV "$PSScriptRoot/../Data/popular-domains.csv"
$NumRows = $Table.Length $numRows = $table.Length
$StopWatch = [system.diagnostics.stopwatch]::startNew() $stopWatch = [system.diagnostics.stopwatch]::startNew()
if ($IsLinux) { if ($IsLinux) {
foreach($Row in $Table){$nop=dig $Row.Domain +short} foreach($row in $table){$nop=dig $row.Domain +short}
} else { } else {
foreach($Row in $Table){$nop=Resolve-DNSName $Row.Domain} foreach($row in $table){$nop=Resolve-DNSName $row.Domain}
} }
[float]$Elapsed = $StopWatch.Elapsed.TotalSeconds [float]$elapsed = $stopWatch.Elapsed.TotalSeconds
$Average = [math]::round($NumRows / $Elapsed, 1) Write-Progress -completed "."
if ($Average -gt 10.0) { $average = [math]::round($numRows / $elapsed, 1)
"✅ DNS resolution is $Average domains per second" if ($average -gt 10.0) {
"✅ DNS resolves $average domains per second"
} else { } else {
"⚠️ DNS resolution is $Average domains per second only!" "⚠️ DNS resolves $average domains per second only!"
} }
Write-Progress -completed "Done."
exit 0 # success exit 0 # success
} catch { } catch {
"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])" "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"