I installed this on my servers within about two hours of it being released to the web. I am compelled, I can’t explain it.
Anyway, just a tiny little note to say that when you upgrade, all NICs will have their firewall turned on automatically. As you can see in the picture we have a backend, management NIC with dedicated hardware, it doesn’t really need a firewall.
I caught this pretty quickly, but I’m putting this up there in the hopes that I can save someone else some degree of suffering. Don’t rollback just yet anonymous Google friend!