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  • Red Hat Enterprise Linux tools digest

    Many tools can help system administrators use Red Hat Enterprise Linux in their data centers and virtual machines securely with maximum performance. Learn which tools are available and how to use them in your RHEL environment. 

  • Puppet, DevOps key to data center surge, says Constant Contact

    The popular open source configuration management system, Puppet, along with DevOps made it possible for Constant Contact to scale operations from hundreds to thousands of servers in their data center. 

  • Open source systems management: Hits and misses

    Which open source systems management tools work for you? Some tools bring welcome automation to repeated tasks. But beware the shortcomings. 

  • Exploring the features of the XFS file system on Linux

    The XFS file system has been designed to deal with high file volumes and large files more efficiently. Find out how the file system manages these files, and when it might be appropriate to use this file system on your Linux servers instead of Ext3 or... 

  • Puppet 2.6.x: Using new features

    The popular open source enterprise systems management tool, Puppet, has been updated in 2.6.0 and 2.6.5. Learn about the new features and see how they work with sample code. 

  • Linux command line tricks: less, screen, pgrep HTTP servers and more

    Mastering the Linux command line can make a system administrator's job much easier. Learn these command line tricks including aliasing more to always be less, using pgrep, screen, tmux, and aspell as well as quickly creating an HTTP server for file s... 

  • Configuring Linux management tasks: Integration and security

    In this Q&A, see how an administrator can best approach Linux management, including learning the importance of integration and top security methods, commands and functions. 

  • Ganeti clustered virtualization on Linux

    Ganeti is a tool for managing virtual instances across a cluster. Learn how to install this open source cluster-management tool on your Linux system using Xen as the hypervisor, and get it to work on a two-node cluster. 

  • Bash commands for navigation, sharing, and find

    Learn how to use Bash on a Linux server to change command line navigation, switch around in directories, file first redirection, three find commands, and how to show people the command line without giving them access through rerouting. 

  • Mounting file system resources with AutoFS

    AutoFS allows resources to be mounted on an as-needed basis, simplifying the management of NFS shares. This tip walks you through the process of setting up AutoFS.