I found a couple additional things needed to be done for this to work:

1. You'll need to allow the execution of Powershell scripts on the probe system via "Set-ExecutionPolicy Unrestricted" or the script won't run. On a x64 server I had to do this specifically in the x86 PowerShell instance.

2. The server name needs to be entered in the parameters field (as noted) with the name surrounded in quotes.

3. Change "Security Context" to "Use Windows Credentials of parent device."

James

Thanks for posting that information James!

Is there a need to modify the above script for monitoring a remote server?

I was successful applying the demo script, prtg provides, to the target server, following the hints from james.

here is what I did, when I tried to add a second script with the content from above:

I set the security information in powershell as requested. I copied the demo batchfile prtg provides and replaced the content with the script from above. I added the advanced exe sensor to the target machine I want the information from, in our case a windows 2008 file server. I entered the FQDN of the server into parameters, like 'example.local' I chose, as written above parent security context.

I received the "Error reading response: missing /prtg" Error.

Is there anything else I have to take care of?

I assume that the given script from above is still valid, as I am not firm with scripting...

thank you in advance for your response

regards Oliver

Can you run the script directly in PowerShell? Please try to replace the first line with param($computer)

...and see if PRTG executes it properly? At least that was needed to make it run in PowerShell without errors. Seems like the $args variable is no longer used, hence it's not working anymore.

You should be able to call it like this:
.\Get-Shares.ps1 your-server-name

Has anyone seen this error when trying to use the above script? I can run the powershell script with no issues from the server running the PRTG local probe

XML: Structural error in xml file, 1 open items. -- JSON: The returned json does not match the expected structure (Invalid JSON.). (code: PE231)

Can you post here was the result looks like when you run the script with Powershell?

I am impressed with this script; however I have all "0" in all fields even thought I am connected to shares and have files opened - any thoughts?

Dear AdamG

Please enable the sensor option "Write Exe result to disk". The logs appear in "C:\ProgramData\Paessler\PRTG Network Monitor". Do you see a powershell / WMI error message in the script result?

Thank You Arne, I was able to fix that with submitting ticket and get help, but wonder if we can use similar script which shows user names (AD) connected to file server, now I see only digits but would be wonderful if I see what users are connected - names. Person who is helping me send me:

$computer = "localhost"

$namespace = "root\CIMV2" $userSessions = Get-WmiObject -class Win32_ServerConnection -computername $computer -namespace $namespace

$users=$usersessions | select UserName -Unique $users_list=($users | select -expand UserName) -join ", " $users_count=$users.count

$Sessions=$usersessions | select ConnectionID -unique $Sessions=$Sessions.count

$Computers=$usersessions | select ComputerName -unique $Computers=$Computers.count

Write-Host "<prtg>" "<result>" "<channel>Total Users connected to Shares</channel>"

"<value>"+ $users_count +"</value>" "</result>"

"<result>" "<channel>Total Computers connected to Shares</channel>" "<value>"+ $Computers +"</value>" "</result>"

"<result>" "<channel>Total Share Sessions</channel>" "<value>"+ $Sessions +"</value>" "</result>"

"<text>" + $Sessions + " Total Sessions - Usernames: " + $users_list + "</text>" Write-Host "</prtg>"

But I have none data - all sensors shows 0 - any thoughts?

Dear AdamG

What is the exact issue? Getting no names, or getting zero values? Only the sensor status message can have text (channel data only stores numbers, not strings.) If the message string is empty, or if you get no data in the first place, please again enable the Write Exe result to disk option to see there is an error during the script execution.

I have found very usable script but after spending some time I don't know how to implement into this custom sensor:

$computer = $args $namespace = "root\CIMV2" $userSessions = Get-WmiObject -class Win32_ServerConnection -computername $computer -namespace $namespace

if($userSessions -ne $null)

{ Write-Host "The following users are connected to your PC: "

foreach ($userSession in $userSessions) { $userDetails = [string]::Format("User {0} from machine {1} on share: {2}", $userSession.UserName, $userSession.ComputerName, $userSession.ShareName) Write-Host $userDetails }

Write-Host }

Output is:

The following users are connected to your PC: User test from machine 1.1.1.1 on share: test User test2 from machine 1.1.1.2 on share: test2

But after changing script to:

$computer = $args $namespace = "root\CIMV2" $userSessions = Get-WmiObject -class Win32_ServerConnection -computername $computer -namespace $namespace

$users=$usersessions | select UserName -unique $users_list=($users | select -expand UserName) -join ", " $users=$users.count

1. $userDetails = [string]::Format("User {0} from machine {1} on share: {2}", $userSession.UserName, $userSession.ComputerName, $userSession.ShareName)

$Sessions=$usersessions | select ConnectionID -unique $Sessions=$Sessions.count

$Computers=$usersessions | select ComputerName -unique $Computers=$Computers.count

if($userSessions -ne $null)

{ Write-Host "<prtg>"

"<result>" "<channel>Connection Details</channel>" foreach ($userSession in $userSessions) { $userDetails = [string]::Format("User {0} from machine {1} on share: {2}", $userSession.UserName, $userSession.ComputerName, $userSession.ShareName)

1. Write-Host $userDetails "<value>"+ $userDetails +"</value>" }

"</result>"

"<result>" "<channel>Total Users connected to Shares</channel>" "<value>"+ $users +"</value>" "</result>"

"<result>" "<channel>Total Share Sessions</channel>" "<value>"+ $Sessions +"</value>" "</result>"

"<result>" "<channel>Total Computers connected to Shares</channel>" "<value>"+ $Computers +"</value>" "</result>"

"<text> Connection Details: "+ $userDetails +"</text>"

Write-Host "</prtg>" }

I have in text field only last line listed in all shares - I am missing something simple.....

Dear AdamG

To debug this script, please manually output the important variables like $userSessions and $users. Check if the content is correct. If that is the case, please check how you process it for the XML return.