dhcp-beacon

About

Script that sends an email containing the local ip addresses of the machine that runs it.

Intended for headless computers that run on networks that use DHCP and you do not own.

For example, if the DHCP lease on a raspberry pi expires, this script can be used as a cronjob to send an email with the new ip address(es) and you can SSH into the new address instead of hooking up a display and keyboard to the pi

Requirements

This python script requires the netifaces module. This can be installed with python's pip package manager:

python3 -m pip install netifaces

Usage

Setting Credentials

Create a file named creds.py containing your credentials like so:

str_username = ""
str_password = ""
list_recipients = ["someuser@examplemail.com"]

str_username and str_password are the username and password of the email account you want to use to send emails with.
list_recipients is a list of the email addresses of those who want to receive emails from the dhcp beacon.

Automating the Script (Run Script at Boot)

On Linux systems with Cron installed, you can have your system automatically run this script using cronjobs.

Add the following to the /etc/crontab file, substituting username with your username to have the script run when your computer reboots. This assumes you've cloned dhcp-beacon to your home directory

@reboot username /usr/bin/python3 /home/username/dhcp-beacon/beacon.py

About

Script that sends an email containing the local ip addresses of the machine that runs it. Intended for headless computers that run on networks that use DHCP and you do not own. For example, if the DHCP lease on a raspberry pi expires, this script can be used as a cronjob to send an email with the new ip address(es) and you can SSH into the new address instead of hooking up a display and keyboard to the pi

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Language:Python 100.0%