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  • firewall restriction check

#firewall_rule.ps1 – Display all rules with key fields:

└─$ cat firewall_rule.ps1 
netsh advfirewall firewall show rule name=all | Select-String "Rule Name" -Context 0,6 | % {
    $c = $_.Context.PostContext
    [pscustomobject]@{
        'Rule Name' = ($_.Line -split ":\s*",2)[1]
        'Enabled'   = ($c[0] -split ":\s*",2)[1]
        'Direction' = ($c[1] -split ":\s*",2)[1]
        'Action'    = ($c[2] -split ":\s*",2)[1]
        'Protocol'  = ($c[3] -split ":\s*",2)[1]
        'LocalPort' = ($c[4] -split ":\s*",2)[1]
        'RemoteIP'  = ($c[5] -split ":\s*",2)[1]
    }
} | ft -AutoSize

                                                                                                                                                                                                                                              
#Remote_IP_restriction.ps1 – List only rules with RemoteIP restrictions:
└─$ cat Remote_IP_restriction.ps1 
netsh advfirewall firewall show rule name=all verbose | Select-String "Rule Name" -Context 0,15 | ForEach-Object {
    $c = $_.Context.PostContext
    $remoteIP = ($c | Where-Object { $_ -match "^RemoteIP" }) -replace "RemoteIP:\s*", ""
    if ($remoteIP -and $remoteIP -ne "Any") {
        [pscustomobject]@{
            'Rule Name' = ($_.Line -replace "Rule Name:\s*", "").Trim()
            'RemoteIP'  = $remoteIP.Trim()
        }
    }
} | Format-Table -AutoSize


#Detailed check of Allow Ports rule:
netsh advfirewall firewall show rule name="Allow Ports" verbose

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