SCOM One-Liners: Get the Host name of your remotely managed device.
One of the nice things about SCOM2007 is the ease in which you can monitor and manage non-Windows devices (Even better with the dhjdhdhdhd addon). Being able to add your switches, routers and Unix devices makes for a more complete overview of the health of your system.
There is a downfall though, and that would be that although you can use Get-RemotelyManagedDevice in the Command shell to list the, umm, remotely managed devices, all it will return is the IP address.
Here’s a SCOM command shell one-liner that will use some .Net-Fu to reverse the IP for you, on the fly:
If you want, you can go a step further and add it to your profile (Or more preferably, a SCOM snippet file that I’ll be writing about later.) and pull it up anytime you want.
The Display-NetAgentsByHostName function has one parameter, -short. Run the default ‘long’ way, it will reverse the IP, list the client that is managing it, the management group and the health state.
With the -short switch, it simply outputs health state, host name and IP address.
It’s not perfect, and coult use some formatting, but it works as is, so I leave it up as an exercise to the reader to polish it some more 
Page formatting messing it up? I’ll fix it some day – until then, download Display-NetAgentsByHostName.ps1
{
function LookUp([string]$ip)
{
trap {
"Unable to resolve IP"
continue;
}
([System.Net.Dns]::GetHostByAddress($ip)).HostName
}
Get-RemotelyManagedDevice | ForEach-Object {
If (!$short) {
If ($_.HealthState -eq "Success") {
Write-Host ("IP Address $($_.Name) resolves to ‘$(Lookup($_.Name))’ – Managed by server: $($_.ProxyAgentPrincipalName.Split(‘.;’)[0])" +
"in Management group: $($_.ManagementGroup) – Health State: $($_.HealthState)`n") -ForeGroundColor Green
} elseif ($_.HealthState -eq "Warning") {
Write-Host ("IP Address $($_.Name) resolves to ‘$(Lookup($_.Name))’ – Managed by server: $($_.ProxyAgentPrincipalName.Split(‘.;’)[0])" +
"in Management group: $($_.ManagementGroup) – Health State: $($_.HealthState)`n") -ForeGroundColor Yellow
} elseif ($_.HealthSTate -eq "Error") {
Write-Host ("IP Address $($_.Name) resolves to ‘$(Lookup($_.Name))’ – Managed by server: $($_.ProxyAgentPrincipalName.Split(‘.;’)[0])" +
"in Management group: $($_.ManagementGroup) – Health State: $($_.HealthState)`n") -ForeGroundColor Red
}
} else {
If ($_.HealthState -eq "Success") {
Write-Host "HEALTHY – Host: $(Lookup($_.Name)) – IP: $($_.Name)" -ForeGroundColor Green
} elseif ($_.HealthState -eq "Warning") {
Write-Host "HEALTH WARNING! State: $($_.HealthState) – Host: $(Lookup($_.Name)) – IP: $($_.Name)" -ForeGroundColor Yellow
} elseif ($_.HealthState -eq "Error") {
Write-Host "HEALTH ERROR! State: $($_.HealthState) – Host: $(Lookup($_.Name)) – IP: $($_.Name)" -ForeGroundColor Red
}
}
}
}
