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PowerShell Script for Monitoring Firewall Status

Security & AuditingJanuary 12, 2025

In this post, I will share a useful PowerShell script that helps in monitoring the status of the Windows Firewall on your system. This script will check whether the firewall is enabled or disabled and can provide alerts if any changes are detected. Proper firewall configuration is crucial for maintaining network security.

powershell
$firewallStatus = Get-NetFirewallProfile | Select-Object Name, Enabled

$firewallStatus | ForEach-Object {
    Write-Host "Profile: $($_.Name) - Status: $($_.Enabled)"
}

$logPath = "FirewallStatusLog.txt"
$firewallStatus | Out-File -FilePath $logPath -Append
Write-Host "Firewall status logged to $logPath."

$disabledProfiles = $firewallStatus | Where-Object { $_.Enabled -eq $false }
if ($disabledProfiles) {
    Write-Host "WARNING: The following firewall profiles are disabled:"
    $disabledProfiles | ForEach-Object { Write-Host $_.Name }
} else {
    Write-Host "All firewall profiles are enabled."
}

Run it across your fleet

This script runs as-is on a single host. Paste it into ServerEngine to schedule it, run it on a whole server group in parallel, and keep the credentials out of the file — see the scripts documentation and the credential store.

Ready when you are.

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