https://github.com/pucherot/Pi.Alert

WIFI / LAN intruder detector. Check the devices connected and alert you with unknown devices. It also warns of the disconnection of "always connected" devices

Pi.Alert

WIFI / LAN intruder detector.

Scan the devices connected to your WIFI / LAN and alert you the connection of unknown devices. It also warns the disconnection of "always connected" devices.

(Apologies for my English and my limited knowledge of Python, php and JavaScript)

How it works

The system continuously scans the network for:

• New devices
• New connections (re-connections)
• Disconnections
• "Always Connected" devices down
• Devices IP changes
• Internet IP address changes

Scan Methods

Up to three scanning methods are used:

• Method 1: arp-scan. The arp-scan system utility is used to search for devices on the network using arp frames.
• Method 2: Pi-hole. This method is optional and complementary to method 1. If the Pi-hole DNS server is active, Pi.Alert examines its activity looking for active devices using DNS that have not been detected by method 1.
• Method 3. dnsmasq. This method is optional and complementary to the previous methods. If the DHCP server dnsmasq is active, Pi.Alert examines the DHCP leases (addresses assigned) to find active devices that were not discovered by the other methods.

Components

The system consists of two parts:

Back

In charge of:

• Scan the network searching connected devices using the scanning methods described
• Store the information in the DB
• Report the changes detected by e-mail

Front

A web frontal that allows:

• Manage the devices inventory and the characteristics
• Display in a visual way all the information collected by the back
  • Sessions
  • Connected devices
  • Favorites
  • Events
  • Presence
  • Concurrent devices
  • Down alerts
  • IP's
  • ...

Installation

Initially designed to run on a Raspberry Pi, probably it can run on many other Linux distributions.

• One-step Automated Install:

  curl -sSL https://github.com/pucherot/Pi.Alert/raw/main/install/pialert_install.sh | bash

• Installation Guide (step by step)

Update

• One-step Automated Update:

  curl -sSL https://github.com/pucherot/Pi.Alert/raw/main/install/pialert_update.sh | bash

Uninstall process

• Unistall process

Device Management

• Device Management instructions

Other useful info

Versions History

Powered by:

Product	Objetive
Python	Programming language for the Back
PHP	Programming language for the Front-end
JavaScript	Programming language for the Front-end
Bootstrap	Front-end framework
Admin.LTE	Bootstrap template
FullCalendar	Calendar component
Sqlite	DB engine
Lighttpd	Webserver
arp-scan	Scan network using arp commands
Pi.hole	DNS Server with Ad-block
dnsmasq	DHCP Server

License

GPL 3.0 Read more here

Contact

pi.alert.application@gmail.com

Suggestions and comments are welcome