Custom Network Intrusion Detection System (NIDS)

Project Overview

This project aims to create a custom Network Intrusion Detection System (NIDS) that can detect various types of network attacks, such as Denial of Service (DoS), port scanning, and unauthorized access, by analyzing network traffic data. The system uses a machine learning model trained on a dataset of labeled network traffic to identify suspicious patterns.

Installation

Steps to Set Up the Project Locally

Clone the repository and navigate to the project directory.
Create a virtual environment:
```
python -m venv venv
```

Activate it:

bash Copy code .\venv\Scripts\activate

Install the required Python libraries using the requirements.txt file:

bash Copy code pip install -r requirements.txt

If you encounter activation issues, use PowerShell to give access with the following commands:

powershell Copy code Set-ExecutionPolicy -ExecutionPolicy RemoteSigned powershell Copy code Unblock-File V:\Github\Custom_NIDS_with_ML.\venv\Scripts\Activate.ps1 powershell Copy code Invoke-Command -ScriptBlock {V:\Github\Custom_NIDS_with_ML.\venv\Scripts\activate} powershell Copy code V:\Github\Custom_NIDS_with_ML.\venv\Scripts\activate.bat Add a database CSV file to your project.

Setting Up the Dataset

To get started, you'll need to download the dataset and place it in a data/ folder within your project directory. Follow these steps:

For the NSL-KDD dataset:

Download the NSL-KDD dataset from the Kaggle website. Extract the downloaded zip file to a folder named data within your project directory. Rename the dataset file to NSL-KDD.csv for simplicity.

For the CICIDS2017 dataset:

Download the CICIDS2017 dataset from the Canadian Institute for Cybersecurity website. Extract the downloaded zip file to a folder named data within your project directory. Rename the dataset file to CICIDS2017.csv for simplicity. Once you've downloaded and placed the dataset in the data/ folder, you can modify the load_data function to load the dataset correctly.

Model Details

Details about the machine learning model, including the training process and evaluation metrics, will be documented here.

Limitations

Any known limitations or potential future improvements can be noted in this section.

Note: VS Code needs to run in admin mode for some features to function correctly.

Real-Time Intrusion Detection

Network Traffic Capture

scapy requires access to network interfaces, which might require administrative privileges. Ensure no other process is using the network interface that could interfere with packet capture.

Simulating Network Traffic

You can use tools like nmap to generate traffic for testing your NIDS. For example, in a separate terminal window, you can run: nmap -sS <your_local_ip> This will simulate a SYN scan, and your NIDS should detect it as a potential intrusion.

arjunraj79/Custom_NIDS_with_ML