My friend and fellow StillSecure exec, Jayson Ayers recently returned from a salmon fishing trip to Alaska where he hooked some big fish. It always fascinated me how salmon make their way "uphill" against the current to spawn. Having to get by the fishermen, the Bears and everything else, it is a wonder of nature that so many of them make it. I felt the same way reading Peter Stephenson's article today ranting against the trend towards all in one boxes.
Peter is a heck of a nice guy and runs the test labs over at SC Magazine. He is also pretty smart. That is why I was surprised to see him take such a contrarian view on this one. I frankly thought this was a battle that had already been fought and to the victors belong the spoils. Peter thinks that putting multiple security apps on one box at the perimeter into a "SuperUTM" defeats the layered security model. Peter makes two points that stand out to him:
1. The boxes represent single point of failures. I don't think this one holds water. Think about it, having separate boxes for firewall, IPS, etc. just represents multiple single points of failure. If any of them fail, it could bring your network down. At least in the UTM model you just have to worry about one box, not several.
2. A single box is not a layered, security in depth defense. I disagree with this one as well. Just because they are on one box, does not mean that you are not deploying layered security defenses. Yes if you can bypass the box, you bypass multiple layers, but that is easier said then done. Also, you might bypass the IPS, but not the firewall. Or you could bypass the content filter and not the AV. The fact that they are are on one box is not really the issue.
Lastly, Peter says having all of these apps on one box does not mean they are easier to manage. That may have been true, but even Peter admits that is getting better. It is certainly cheaper. The question in my mind is do they all function on one box. With virtualization and powerful off the shelf hardware, the age of multi-function boxes has arrived for sure!
Now Peter, once you get your head around a multi-function security box, let me introduce you to the next evolutionary step, a unified network platform, Cobia.