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POPowershell security get-service different results interactive vs scheduled-task
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  1. POPowershell security get-service different results interactive vs scheduled-task
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    copied!<p>I've spent hours trying to pin down this problem. I'm running a PowerShell to verify if various services are running. I want to run it every 5 minutes from Windows Task Scheduler. </p> <p>It checks services on other servers, and some on the same machine on which it is running. When I run it under task scheduler, under the same userid that I'm running interactive I get different results. Interactively, shows all the services on local machine are running. When run through task scheduler, it tells me that service is not found. </p> <p>This is just a fragment of a larger program. I get the server/service names from a CSV file, then at the end it sends a nice HTML email. I added the Add-Content to create a trace file to prove this happening. </p> <pre><code>foreach ($line in $csv) { $reportStatus = "" $ServerCount = $ServerCount + 1 #$Service = (get-service -Name $line.ServiceName -ComputerName $line.ServerName) #this is slower than above, but it gives us the processId which we can use to find out what time the service/process started write-host "Verifying: " $line.ServerName $line.ServiceName $myDate = Get-Date Add-Content D:\scripts\ServiceMonitorTrace.txt "$myDate $($line.ServerName) $($line.ServiceName)" $Service = (get-wmiobject win32_service -ComputerName $line.ServerName -filter "name = '$($line.ServiceName)'") if ($Service -eq $null) { $reportStatus = "Service Not Found: name = '$($line.ServiceName)'" $trColor = "Yellow" $ErrorCount = $ErrorCount + 1 $CriticalErrorCount = $CriticalErrorCount + 1 $CreationDate = "NA" Write-Host "----&gt; $reportStatus " Add-Content D:\scripts\ServiceMonitorTrace.txt "$myDate $reportStatus" } } </code></pre> <p>New Simpler Version (has exact same issue): $Service = (get-wmiobject win32_service -ComputerName "DAL-BIZ-APP01" -filter "name = 'LanManServer'") if ($Service -eq $null) { $reportStatus = "Service not found" } else { $reportStatus = "Service found" } $myDate = Get-Date Write-Host $reportStatus Add-Content D:\scripts\ServiceTestTrace.txt "$myDate $reportStatus" </p> <p>Interactive Results: </p> <pre><code>10/31/2013 09:34:00 DAL-BIZ-APP01 MSDTC 10/31/2013 09:34:00 DAL-BIZ-APP01 BTSSvc$BizTalkHost_QT_Default </code></pre> <p>Scheduled Job Results: </p> <pre><code>10/31/2013 09:25:42 DAL-BIZ-APP01 MSDTC 10/31/2013 09:25:42 Service Not Found: name = 'MSDTC' 10/31/2013 09:25:42 DAL-BIZ-APP01 BTSSvc$BizTalkHost_QT_Default </code></pre> <p>I run it from a command file that contains this: </p> <pre><code>powershell -command "&amp; 'D:\Scripts\ServerMonitor.ps1'" d:\Scripts\ServerMonitorConfig.csv </code></pre> <p>Running the command file from a non-admin command prompt window or the scheduler also seems to have different results. </p> <p>New Simpler Version if someone want to try, just substitute two computer names: </p> <pre><code>$Service = (get-wmiobject win32_service -ComputerName "DAL-BIZ-APP01" -filter "name = 'LanManServer'") if ($Service -eq $null) { $reportStatus = "Service not found" } else { $reportStatus = "Service found" } $myDate = Get-Date Write-Host $reportStatus Add-Content D:\scripts\ServiceTestTrace.txt "$myDate DAL-BIZ-APP01 $reportStatus" $Service = (get-wmiobject win32_service -ComputerName "DAL-BIZ-APP02" -filter "name = 'LanManServer'") if ($Service -eq $null) { $reportStatus = "Service not found" } else { $reportStatus = "Service found" } $myDate = Get-Date Write-Host $reportStatus Add-Content D:\scripts\ServiceTestTrace.txt "$myDate DAL-BIZ-APP02 $reportStatus" </code></pre> <p>Results: </p> <pre><code>10/31/2013 16:07:48 DAL-BIZ-APP01 Service found 10/31/2013 16:07:48 DAL-BIZ-APP02 Service found 10/31/2013 16:08:03 DAL-BIZ-APP01 Service not found 10/31/2013 16:08:03 DAL-BIZ-APP02 Service found </code></pre> <p>16:07:48 was from command prompt, 16:08:03 was from task scheduler. </p>
 

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