58 lines
1.2 KiB
PowerShell
58 lines
1.2 KiB
PowerShell
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## names of hostname to run DNS checks against please leave the name in brackets
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$hostname = 'bbc.com'
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## allowed time for DNS check to be done (Milliseconds)
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$time = 100
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write-host -NoNewLine "Verifying" $hostname " ... "
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## Do a ping test to ensure hostname can be contacted
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if (Test-Connection $hostname -Count 1 -ErrorAction SilentlyContinue)
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{
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write-host "Ping test passed for $hostname"
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}
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else
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{
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write-host "Ping Test Failed for $hostname"
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exit 1
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}
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## Test if the DNS record exists or not
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try
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{
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$dnscheck = [System.Net.DNS]::GetHostByName($hostname)
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$test = $true
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}
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catch
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{
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Write-Output "Unable to resolve DNS for $hostname"
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exit 1
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}
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## Do some verification if DNS record exists
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if($test)
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{
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## Check time taken in Milliseconds to resolve hostname
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$start_time = Get-Date
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nslookup $hostname
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$timetaken = $((Get-Date).Subtract($start_time).Milliseconds)
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Write-Output "Time taken: $timetaken Milliseconds"
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if ($timetaken -ge $time)
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{
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write-host "DNS lookup for $hostname took longer than $time Milliseconds"
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exit 1
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}
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else
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{
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Write-Output "Everything appears fine with your DNS for $hostname"
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exit 0
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}
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}
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Exit $LASTEXITCODE
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