Your degree of technical understanding. It's designed with an explicit focus on what you are trying to accomplish, and shields you from the complexities of how the server achieves it. All communication between you and a server appliance is through your browser. If you're technically inclined, you can dig down to the Linux operating system and strut your stuff. For the rest of us, the browser access works fine.
Reliability is another hallmark of a server appliance.
This means very high reliability, with uptimes measured in months and years, not days or weeks like general-purpose servers. Server appliances are part of the Internet revolution. And as with all revolutions, the point of view is completely different. This time it's about you. All rights reserved.