Move your business from Windows to Linux

For most distributions, the same disc will contain server applications, including the Apache Web Server, the MySQL database engine, virtualization, and support for leading commercial databases and CRM applications from companies like Oracle, Sybase, and SAP. The Samba networking software emulates Windows Server's networking features admirably, and for free, versus Windows Server 2008's starting price of $999. You can even replace your costly Exchange server installation with the free, open-source Zimbra Collaboration Suite.

Whether you're using desktop or server versions of Linux, the operating system is famous for one other important feature that Microsoft is still gradually adding to Windows: security. Linux is not somehow magically immune to viruses, worms, and other Internet-based attacks. However, the reality is that the vast majority of existing attacks target Windows and Windows applications. Mostly by design, Linux is simply not subject to most of the Internet-based malware that threatens PCs. The overwhelming majority of malware targets Windows.

Don't Panic at the Distro

No two Linux distributions are the same, differing mainly in how user-friendly their installers are, how willing they are to include experimental or nonstable versions of software and utilities, and how they offer access to updates.

The two most popular Linux window managers, the software that controls the look and behavior of the X Window graphical user interface, are Gnome and KDE. Most distributions default to installing one or the other--Ubuntu opts for the former, for example, and OpenSuSE, the latter. However, you could install both window managers (and dozens more) on your system, and choose which to use when you log in. Several window managers, notably Xfce and Blackbox, require less memory and graphics processing than Gnome and KDE, making them a good choice for older hardware. Lightweight Linux distributions, such as Puppy Linux, prune the OS down to its elements, breathing life into even the most ancient PC.

Linux distributions also differ in how well they support your particular hardware, especially wireless networking devices and display adapters. Perhaps the easiest way to directly assess this support on your particular hardware without having to actually install Linux is to download, burn, and boot a live-CD distro. Ubuntu, OpenSuSE, Gentoo, and literally hundreds of other Linux distributions come in live-CD versions.

Get Help, If You Need It

The reality of operating system support is that it costs a lot of money, whether it comes from Microsoft, Apple, Novell, or Canonical. Your copy of Windows Vista comes with 90 days of technical support via phone, e-mail, or chat that starts the day you activate the product. After that, Microsoft charges $60 per support incident.

Commercial Linux distributions offer similar, but less expensive, support options. The $US60 packaged version of Novell's community-supported OpenSuSE 11.0 comes with 90 days of installation support. For long-term support, choose SuSE Linux Enterprise Desktop (currently in version 10) for $50 per year, or go with Ubuntu and buy a support contract from maker Canonical starting at $250 per year.

If you're already doing without dedicated support staff for Windows, one year may be all the paid support you need for Linux. Ubuntu users joke that simply googling for technical support usually results in the exact answer you're looking for on Canonical's forums.

Linux is different from Windows, but it isn't an alien life form. The human investment you make in transitioning away from expensive Windows and Office licenses may pay for itself quickly. More important, you'll be free to run the desktop and server software of your choice, on hardware you can afford.