PowerShell/Scripts/train-dns-cache.ps1
2021-02-16 10:03:20 +01:00

34 lines
898 B
PowerShell
Executable File

#!/bin/powershell
<#
.SYNTAX ./train-dns-cache.ps1
.DESCRIPTION trains the DNS cache with frequently used domain names
.LINK https://github.com/fleschutz/PowerShell
.NOTES Author: Markus Fleschutz / License: CC0
#>
Set-StrictMode -Version Latest
$PathToRepo = "$PSScriptRoot/.."
try {
$StartTime = Get-Date
write-progress "Reading Data/domain-names.csv..."
$Table = import-csv "$PathToRepo/Data/domain-names.csv"
foreach($Row in $Table) {
$Domain = $Row.Domain
write-progress "Training DNS cache with $Domain..."
$Ignore = nslookup $Domain
}
$Count = $Table.Length
$StopTime = Get-Date
$TimeInterval = New-Timespan -start $StartTime -end $StopTime
write-host -foregroundColor green "Done - DNS cache trained with $Count domain names in $TimeInterval seconds"
exit 0
} catch {
write-error "ERROR: line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
exit 1
}