We started out as a SCO Unix shop. When I got hired in to re-write our legacy systems (cobol) for the Y2K issue, I loaded a RedHat server to clone off the SCO box for programming and testing.

A year later, we were the first to load a Domino server on Linux.

New Intranet server, RedHat.

New web server, RedHat.

New backup server, RedHat.

We have one W2K server to run Symantec Corporate AV. That will be replaced with a different AV that runs on a linux platform, by the end of next month. That will make us 100% linux/Unix again.

We are in the process of updating servers, and are going to SuSE SLES10. This will also replace the SCO box.

We had two servers with an uptime of over 350 days until the power went out over the weekend for a day and a half.

Why move off of SCO? The company has been a joke ever since Caldera bought it up.

Why not run our mail server off of windows? CodeRed and the like NEVER even showed up as a blip.

Why not run our web/intranet servers off of windows? security and cost. Especially back in the day that MicroSoft was still catering to the lowest denominator in users with the "everything on" by default settings.