Just doing some reading about the Cisco Web Security Appliance, and having worked on Bluecoats in the long past anyways, I actually don't see the point of proxy-servers nowadays. If you have a decent firewall with next-gen features (IPS, Malware Detection, URL Filtering, Dynamic Feeds etc), then I don't see any real benefit of a proxy. Sure you can save a few megabytes from caching, but people have big pipes nowdays, so nobody cares; but even if you did, you'd use a WAN optimisation box like a riverbed which is far cheaper. I'm only frustrated because I keep reading stuff about it, and I just constantly ask myself, well what's it doing that a NGFW can't do already. Is there something I'm missing here? Is it just a bit of offloading for very large networks maybe? I dont know.
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