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26 lines
663 B
PowerShell
Executable File
26 lines
663 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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# Author: Markus Fleschutz
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# Source: github.com/fleschutz/PowerShell
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# License: CC0
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$Table = import-csv domain_table.csv
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try {
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$StartTime = Get-Date
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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-host "✔️ DNS cache trained with $Count domain names in $TimeInterval sec."
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exit 0
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} catch { Write-Error $Error[0] }
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exit 1
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