The Linux operating system can be a powerful front-end server to mainframe hosts. Linus Torvalds created the Linux kernel in 1992 and established its open-source model, under which developers are free to distribute and modify the software and its source code. Many Web servers already run on Linux, and IBM is a major backer, promoting Linux to its developer and reseller base. Linux has tremendous potential for E-business support because it is powerful, reliable and inexpensive; modest hardware requirements let users leverage older equipment. Companies can quickly set up server farms and add