SSL Certificate Expiry Checker

How to Use

1. Clone the Repository

git clone https://github.com/yourusername/SSL-checker.git
cd SSL-checker

2. Test the Script (Optional)

Before scheduling periodic checks, you can test the script to ensure it's working as expected:

python3 check_ssl.py

3. Schedule Periodic Checks with cron

On Unix-Like Systems (Linux, macOS)

1. Open the crontab editor:

crontab -e

2. Add the following line to run the script daily at a specific time (e.g., 3:00 PM every Monday):

    Schedule a cron job based on the remaining days
    *  *  * * * 
    │  │  │ │ └───── day of the week (0 - 7, both 0 and 7 represent Sunday)
    │  │  │ └─────── month (1 - 12)
    │  │  └───────── day of the month (1 - 31)
    │  └──────────── hour (0 - 23)
    └─────────────── minute (0 - 59)

0 15 * * 1 /usr/bin/python3 /path/to/SSL-checker/check-ssl.py

• Replace /usr/bin/python3 with the path to your Python interpreter.
• Replace /path/to/SSL-checker/check-ssl.py with the actual path to your script.

3. Save and exit the crontab editor.

On Windows (Task Scheduler)

1. Open the Windows Task Scheduler.

2. Create a new task and configure it to run python3 with the script's full path as the argument. Set the schedule according to your preferences.

4. Monitor SSL Certificates

The script will now run periodically as scheduled, checking the SSL certificates of the specified websites. When a certificate is about to expire within the defined threshold, you can send an email alert.

License

This project is licensed under the MIT License - see the LICENSE file for details.