Mass test-connection powershell

Question

Well, I have problem with Test-Connection function in PowerShell. I have a csv file with column Server name and IPAddress . I need to create connection report with information Server name , IPAddress , Result . How could I add information about column server name?

My current code looks like:

$Report = @()
$Servers = Import-CSV "C:\skrypt\bobi\servers.csv"  -Delimiter ';'
foreach ($Server in $Servers) {
    if ($Alive = Test-Connection -ComputerName $Server.IPAddress -Count 1 -quiet) {
        $TestResult = New-Object psobject -Property @{
            IPAddress = $Server.IPAddress
            Result    = "Online"
        }
    }
    else {
        $TestResult = New-Object psobject -Property @{
            IPAddress = $Server.IPAddress
            Result    = "Offline"
        }
    }
    $Report += $TestResult
}       
$Report | Select-Object IPAddress, Result | Export-Csv C:\skrypt\bobi\Report.csv -nti

Answer 1

I think this might help you:

$Servers = @(
    [PSCustomObject]@{
        'Server Name' = 'Server1'
        IPAddress = '10.10.10.10'
    }
    [PSCustomObject]@{
        'Server Name' = 'Wrong'
        IPAddress = '10.10.10.999'
    }
    [PSCustomObject]@{
        'Server Name' = 'Server2'
        IPAddress = '10.10.10.15'
    }
)

$Report = foreach ($Server in $Servers) {
    # First we collect all details we know in an object
    $Result = [PSCustomObject]@{
        Name   = $Server.'Server Name'
        IP     = $Server.IPAddress
        Online = $false
    }

    # Then we do the test
    if (Test-Connection -ComputerName $Server.IPAddress -Count 1 -Quiet) {
        # If the connection is successful, we set it to True
        $Result.Online = $true    
    }

    # As a last step we return the complete object
    # where it is collected in the array of Report
    $Result
}

$Report | Select-Object Name, IP, Online

Answer 2

In case your CSV file have column with hostnames you would need to change PSCustomObject to:

$TestResult = New-Object psobject -Property @{
    IPAddress = $Server.IPAddress
    HostName = $Server.HostName #assuming column name is "HostName"
    Result    = "Result"
}

In case your CSV file does not have column with hostnames you would need to request System.Net.Dns class with its GetHostByAddress method. Like so:

$TestResult = New-Object psobject -Property @{
    IPAddress = $Server.IPAddress
    HostName = $([System.Net.Dns]::GetHostByAddress($Server.HostName).HostName -join ';')
    Result    = "Result"
}

In both cases you then will need to pipe HostName property to export csv file

$Report | Select-Object IPAddress, HostName, Result | Export-Csv C:\skrypt\bobi\Report.csv -nti