Can be run from cron every night to make sure you keep those pesky hackers out.
Are you still using virtual machines like a sucker? here’s the complete guide to the future, it’s called containerization. I’ve been using chroot for years, not only for webpages with the php-fpm, but also for services like Postfix, Dovecot and Bind.
This script is a part of the Asbra Firewall Project which is a set of utilities for managing a Linux Netfilter Firewall.