Hi all, just wondering if anyone can point me in the direction of a book or something that will help explain the UI which I have to say (and I mean no offence) looks extremely complicated and unfriendly.

I'm looking to setup the device as securely as possible. All I've found so far are snippets here and there, for example:

Setting up manual firewall filters

Any pointers welcome because the UI is the main thing putting me off purchasing a 2860ac. Thanks!

I have the same issue with the UI. It's not the friendliest of interfaces.
I thought I'd secured port 25 so that only the mailserver can use it, but it appears not. I want to lock down outgoing traffic as well as incoming...