PowerShell/Scripts/train-dns-cache.ps1
2020-12-09 09:30:55 +00:00

28 lines
720 B
PowerShell
Executable File

#!/snap/bin/powershell
# Syntax: ./train-dns-cache.ps1
# Description: trains the DNS cache with frequently used domain names
# Author: Markus Fleschutz
# Source: github.com/fleschutz/PowerShell
# License: CC0
try {
$StartTime = Get-Date
$Table = import-csv domain_table.csv
foreach($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 "OK - DNS cache trained with $Count domain names in $TimeInterval sec."
exit 0
} catch {
Write-Error "ERROR in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
exit 1
}