Because Linux is distributed under the GPL, software vendors have been able to tweak and customize the operating system to operate in a variety of roles. While the number of these roles is virtually limitless, for the Linux+ exam you need to be familiar with the following roles:
• Linux as a desktop
• Linux as a server
• Linux as a firewall
Let’s begin by discussing Linux on the desktop.
Linux can be optimized to function extremely well as a desktop system. However, Linux has been somewhat slow to make inroads into this market. There are two important reasons for this.
First, historically there has been a lack of desktop productivity applications available for Linux. Users need word processing, spreadsheet, ...