Enumerate Firewall rules with PowerShell

[asktechsupport]

• Scripted
• Tested

[asktechsupport]

# Import Active Directory module`
Import-Module ActiveDirectory
# Retrieve the list of servers from Active Directory
$servers = Get-ADComputer -Filter 'OperatingSystem -like "*Windows Server*"' -Property Name | Select-Object -ExpandProperty Name
# Function to check firewall status on a server
function Get-FirewallStatus {
   param(
       [string]$ServerName
   )
   $firewallProfiles = Invoke-Command -ComputerName $ServerName -ScriptBlock {
       Get-NetFirewallProfile | Select-Object Name, Enabled
   } -ErrorAction SilentlyContinue
   if ($firewallProfiles) {
       $firewallProfiles | ForEach-Object {
           [PSCustomObject]@{
               Server   = $ServerName
               Profile  = $_.Name
               Enabled  = $_.Enabled
           }
       }
   } else {
       [PSCustomObject]@{
           Server   = $ServerName
           Profile  = "N/A"
           Enabled  = "Unable to Connect"
       }
   }
}
# Loop through each server and check the firewall status
$firewallStatuses = foreach ($server in $servers) {
   Get-FirewallStatus -ServerName $server
}
# Display the results
$firewallStatuses | Format-Table -AutoSize`

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