"In a dream world, all software would be free. However, we spend enough time with our eyes open to realize that some situations call for proprietary software, either as a desktop or as a server application, on a free system. On the other hand, those stuck with a proprietary operating system can still enjoy free software applications. This article will list a few situations where free software and proprietary software can mix, and give three examples of each.
"Examine this scenario: your company is moving your servers over to a free system. The trouble is, you have an Oracle database that’s been running for x years and it’s tweaked so perfectly you can’t afford the time and effort to scrub it and migrate to a free relational database management system (RDBMS). Rest easy: Oracle is available on free systems, albeit certified only on certain distributions..."
