General, Networking, Security, Server Administration
When you think of your production servers, you need to imagine them as your car sporting a new stereo in a parking lot with a bunch of would-be burglars milling around outside constantly checking each window and door to make sure you locked it tightly the last time you had it open. Every door, window, or keyless entry system is a potential point of invasion that can fail you. Why do you think those brinks trucks have no windows and the only way in the back is a single, beefy, padlocked door. A Brinks truck may not be convenient to access, but that isn't their goal. You need to control the ways into your server with the same gusto.