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