VPN_RandR

*VPN Remove and Reinstall

Here's a Python script that automates the process of removing existing

VPN configurations and installing a full IPsec VPN using the setup script from the GitHub repository.##

Features:###

1. Prompts the user for confirmation before removing existing VPN configurations.
2. Stops and removes VPN-related services (ipsec, xl2tpd, strongswan, etc.).
3. Removes old VPN configurations and directories.
4. Installs the full VPN setup from the provided GitHub repository.

Script: vpn_reinstall.py

#!/usr/bin/python3
import os
import subprocess

def confirm_action(prompt):
    # """Prompt user for confirmation before proceeding."""
    while True:
        response = input(f"{prompt} (yes/no): ").strip().lower()
        if response in ["yes", "y"]:
            return True
        elif response in ["no", "n"]:
            return False
        else:
            print("Invalid input. Please type 'yes' or 'no'.")

def stop_and_remove_vpn():
    # """Stop and remove existing VPN services and configurations."""
    services = ["ipsec", "xl2tpd", "strongswan", "libreswan", "openswan"]
    ```
    print("\nStopping VPN services...")
    for service in services:
        subprocess.run(["sudo", "systemctl", "stop", service], stderr=subprocess.DEVNULL)
        subprocess.run(["sudo", "systemctl", "disable", service], stderr=subprocess.DEVNULL)
        subprocess.run(["sudo", "systemctl", "reset-failed"], stderr=subprocess.DEVNULL)
``
    print("Removing VPN packages...")
    subprocess.run(["sudo", "apt-get", "remove", "-y"] + services, check=False)
    subprocess.run(["sudo", "apt-get", "autoremove", "-y"], check=False)
`
    print("Deleting VPN configuration files...")
    vpn_files = ["/etc/ipsec.conf", "/etc/ipsec.secrets", "/etc/xl2tpd", "/etc/ppp"]
    for file in vpn_files:
        subprocess.run(["sudo", "rm", "-rf", file])  

`
    print("Flushing IP tables and restarting networking...")
    subprocess.run(["sudo", "iptables", "-F"])
    subprocess.run(["sudo", "iptables", "-X"])
    subprocess.run(["sudo", "systemctl", "restart", "networking"])

def install_vpn():
    # Download and install VPN from GitHub repository.
    print("\nDownloading and installing VPN setup script...")
    subprocess.run(["wget", "-q", "https://raw.githubusercontent.com/hwdsl2/setup-ipsec-vpn/master/vpnsetup_ubuntu.sh", "-O", "vpnsetup.sh"])
    subprocess.run(["sudo", "chmod", "+x", "vpnsetup.sh"])
    subprocess.run(["sudo", "bash", "vpnsetup.sh"])

def main():
    print("\nVPN Configuration Reset & Installation Tool")
`
    if confirm_action("Do you want to remove all existing VPN configurations?"):
        stop_and_remove_vpn()
        print("VPN configuration removed successfully.")
``
    if confirm_action("Do you want to install the full VPN setup from hwdsl2?"):
        install_vpn()
        print("VPN installation completed.")

```    print("\nProcess finished.")

if __name__ == "__main__":
    main()

How to Use the Script

Save the script as vpn_reinstall.py on your Ubuntu server. Give it execute permissions:

chmod +x vpn_reinstall.py

** Run the script:**

sudo python3 vpn_reinstall.py

What This Script Does:

**Checks with the user before proceeding with any action. Stops and removes any existing VPN services and configurations. Deletes VPN-related files and clears iptables. Downloads and installs the full IPsec VPN setup from hwdsl2 GitHub repo. ** This ensures a clean removal of previous VPN configurations and reinstallation of a fresh VPN setup.

Thank you for participating

Would you like any modifications or additional features? 🚀