What the @#$% Over?

I discovered today that I won't be able to convert to firewalld on my openvz virtual servers. Boo-Hoo!!

When first migrating to version 7 of CentOS I failed to understand the working of the new default firewalld product and kept with iptables/ufw. I am finally embracing the new methodology, and found an exellent article Understanding Firewalld in Multi-Zone Configurations . I hope this note helps you if you seek knowledge.