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Once installed and authenticated, you can immediately start exposing local services to the public internet.

Ensure your local server (like Apache) is running first ( sudo systemctl start apache2 ). ngrok http 80 Use code with caution. Expose a Custom Port (e.g., 8080): ngrok http 8080 Use code with caution. TCP Tunneling (Useful for SSH or Meterpreter): ngrok tcp 22 Use code with caution. Common Troubleshooting Download ngrok for Linux

To download and install on Kali Linux, the most efficient method is using the official ngrok repository . This ensures you receive the latest updates and security patches directly from the source. Method 1: Install via Official APT Repository (Recommended)

Move the file to /usr/local/bin so you can run it from any directory. sudo mv ngrok /usr/local/bin/ Use code with caution. Step 3: Account Setup & Authentication