Apr 022012
 

William E. Shotts, Jr., published a few years ago a useful ebook entitled “The Linux Command Line”, a guide to learn and know more about the Command Line Interface (CLI) on GNU / Linux. The ebook is still available for download and is released under a Creative Commons license.

Although most distributions have graphical environments and interfaces for applications, the command line continues to be a useful tool to do various tasks while using the system. Even the combination of GUI and command line interface, well used, can help you to perform the tasks that you need quickly and accurately.
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Mar 192011
 

puppetArticle wrote by

By Ikuya Yamada and Yoshiyasu Takefuji

Introduction

When a server environment is created using virtualization software or a cloud service, the number of servers tends to increase rapidly. Software installation and configuration are required every time a server is created. Further, synchronizing server configurations requires additional effort such as writing shell scripts.

In this article, we will describe how to build a server environment automatically using a relatively new software tool called Puppet. Although this tool is typically used to manage large-scale server infrastructure (such as a data center or a Web service with a large number of users), it can also be used to manage a small number of servers. However, Puppet is a newly developed tool, and the existing documentation and the articles on Puppet are still somewhat cursory.

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