Linux has proven that the open source model works — it addresses two of the biggest challenges for IT professionals: the high cost of infrastructure software and the limitations a closed stack imposes on the enterprise. Open source is particularly appealing for cost savings, vendor neutrality, access to source code and innovation.
Using Linux is one thing — it is a widely used and contained piece of software — but using open source software higher up the stack can be unnerving. Unlike the operating system, middleware components are often integrated with other components.
