Nagios Support Forum

Hello

Can we see that which user is login on which computer by nagios core?


Regards

Sure, but the actual implementation would depend on the authentication method being used (sometimes) as well as the operating system itself (all the time).

Here's an older post I made where I do a Windows-based "logged in users" check via Powershell using and older NSClient++ version as the agent:
https://support.nagios.com/forum/viewto ... 58#p191894

You could expand on that Powershell following the nagios plugin development guidelines if you wanted richer output.

There's a few different options available on the Nagios Exchange as well:
https://exchange.nagios.org/index.php?o ... 0on%20user

Thanks for the assist, @mcapra!

In old post, I copied this script. Can you tell me where I will put this script.

The following powershell script (I named it check_users.ps1) worked against my Windows 7 machine:

Code: Select all
$computername = 'localhost'

$user = Get-WMIObject Win32_Process -filter 'name="explorer.exe"' -computername $ComputerName |
ForEach-Object { $owner = $_.GetOwner(); '{0}\{1}' -f $owner.Domain, $owner.User } |
Sort-Object | Get-Unique

if(!$user) {Write-Host ""}
else {Write-Host $user}


My NSClient++ (0.4.x) command configuration:

Code: Select all
[/settings/external scripts/scripts]
check_users = cmd /c echo scripts\check_users.ps1; exit($lastexitcode) | powershell.exe -command -


I am using NCPA client. How I can use on NCPA?

Here's the official documentation for using custom scripts/plugins with NCPA:
https://support.nagios.com/kb/article/n ... a-722.html

It has a section which includes a sample Powershell script. Let us know if some part of that documentation is unclear or isn't working correctly.

Thanks @mcapra for the help. @alidar let us know if you have any further questions.