there's a work around you can use for this via local metric ingestion through OneAgent an this is a PowerShell script for doing this
function Test-TcpConnection {
param(
[string]$MetricName,
[string]$IPAddress,
[int]$Port,
[System.Threading.ManualResetEvent]$StopEvent,
[int]$Interval
)
while ($StopEvent.WaitOne(0)) {
try {
$socket = New-Object System.Net.Sockets.TcpClient
$socket.Connect($IPAddress, $Port)
Write-Host "TCP connection to ${IPAddress}:${Port} successful"
$result = 1
} catch {
Write-Host "TCP connection to ${IPAddress}:${Port} failed: $_"
$result = 0
} finally {
if ($socket) { $socket.Close() }
$headers = @{
'Content-Type' = 'text/plain; charset=utf-8'
}
Invoke-RestMethod -Uri http://localhost:14499/metrics/ingest -Method Post -Body "${MetricName},destination-address=${IPAddress},destination-port=${Port} ${result}" -Headers @{'Content-Type' = 'text/plain; charset=utf-8'}
Start-Sleep -Seconds $Interval
}
}
Write-Host "Script stopped."
}
# Create a manual reset event to control the script's execution
$stopEvent = New-Object System.Threading.ManualResetEvent False
# Function to stop the script
function Stop-Script {
$stopEvent.Set()
}
# Call the Test-TcpConnection function
Test-TcpConnection -MetricName "host.tcp-test.status" -IPAddress 127.0.0.1 -Port 80 -StopEvent $stopEvent -Interval 20
using this approach you can ingest metrics from OneAgent on the desired machine as mentioned in the code the interval is each 20 seconds to test connectivity with <IP_ADDRESS>:<PORT> and you've status of 0 means that connection failed or 1 that connection successfully established, accordingly you can make custom event for alerting using the metric `host.tcp-test.status` to get notified when metric value is 0, you can replace xxxx with the real host name you're ingesting your metric from if you willing to use it from multiple servers to use server name as dimension for filtering data points later.
when running this script from PowerShell you should find it in dynatrace like this
references:
https://docs.dynatrace.com/docs/shortlink/local-api#example
https://docs.dynatrace.com/docs/shortlink/metric-events
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