cyber essentials firewall setup

https://cyberessentialssecureexpert.urbanvellum.com/posts/why-cyber-essentials-secure-configuration-matters-for-your-business

For cyber essentials compliance, the firewall setup isn't just about turning it on—you need to ensure only approved traffic gets through. I had to lock down unnecessary ports, whitelist specific IP addresses, and double-check that the rule set blocks inbound connections by default. Testing with a vulnerability scanner afterward was eye-opening.