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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Firewall Script</title>
<link rel="icon" type="image/x-icon" href="https://1999azzar.github.io/gpt-advance-prompt/web/img/favicon.png">
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Caveat&family=Dancing+Script&display=swap" rel="stylesheet">
<link rel="stylesheet" href="https://1999azzar.github.io/gpt-advance-prompt/web/style/style.css">
</head>
<body>
<h1 id="block-programs-from-internet-using-firewall">Block Programs from Internet using Firewall</h1>
<p>This script helps you block internet access for specific programs using the Windows firewall automatically.</p>
<h2 id="what-it-does">What it does</h2>
<ul>
<li>The script blocks internet access for all <code>.exe</code> files in the script's directory and its subfolders.</li>
<li>It creates two firewall rules for each <code>.exe</code> file found: one for incoming connections and one for outgoing connections.</li>
</ul>
<h2 id="how-to-use">How to use</h2>
<ol>
<li><a href="https://codeload.github.com/1999AZZAR/bash-firewall-script/zip/refs/heads/master">Download this repository.</a></li>
<li>Extract the downloaded files.</li>
<li>Copy the extracted <code>.bat</code> file to the folder of the program(s) you want to block internet access for.</li>
<li>Run the script as an administrator (right-click on the script and choose "Run as administrator").</li>
<li>Once the script finishes running, you can safely delete the <code>.bat</code> file from the program folder.</li>
<li>Internet access for the specified programs will now be blocked.</li>
</ol>
<h2 id="how-it-works">How it works</h2>
<ul>
<li>The script is written in <code>batch</code> language, a scripting language for the Windows command line.</li>
<li>It uses the <code>for</code> and <code>netsh</code> commands to add firewall rules for each <code>.exe</code> file in the current directory and its subdirectories.</li>
<li>The <code>for /R</code> command searches through all subdirectories, and <code>%%f</code> represents the current file path.</li>
<li>Firewall rules are added using the <code>netsh advfirewall firewall add rule</code> command.</li>
<li>Each rule blocks incoming and outgoing connections for a specific program.</li>
<li>The rule's name, direction, and program path are specified in the command.</li>
<li>The script includes the <code>setlocal enableextensions</code> command to enable extensions and <code>cd /d "%~dp0"</code> to change to the script's directory.</li>
<li>A <code>pause</code> command is included so you can review the results before closing the command prompt.</li>
</ul>
<h2 id="flowchart">Flowchart</h2>
<pre class="mermaid">
graph LR
subgraph Initialize
A[Set Echo Off]
B[Enable Local Extensions]
C[Change Directory]
end
subgraph Loop
D[Loop through files *.exe]
E[Add Outbound Firewall Rule]
F[Add Inbound Firewall Rule]
end
G[Display Pause Message]
A --> B --> C --> D --> E --> F --> D
D -->|Done| G
</pre>
<p>Note: Be cautious when using this script, as it blocks all internet access for the specified programs. Make sure to have backup copies of the files you want to block.</p>
<script type="module">
import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@10/dist/mermaid.esm.min.mjs';
</script>
</body>
</html>