• Taking control with the Linux command line

    Linux expert William E. Shotts Jr. wants more Linux users to discover the command line and tap the advanced functionality below the GUI.

  • Upgrading to Ubuntu Server 11.04

    Upgrading to Ubuntu Server 11.04 may not be necessary, as you may want to wait for the April 2012 release of Ubuntu 12.04 LTS. Learn about why to upgrade now, and how to do it.

  • Ten command line time-savers for Linux admins

    Quick command line navigation and execution is the key to easy Linux system administration. Learn these 10 command line tricks to increase your proficiency and speed in Bash or other Linux shells.

  • Mastering the Linux history command

    Learning how to take advantage of the Linux history command, as well as the Bash variant, can save Linux admins a lot of time. Discover how the command works, including shortcuts, searching and set...

Introduction to Linux system administration

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  • Yellowdog Updater, Modified (YUM)

    Yellowdog Update, Modified (YUM) is a program that manages installation, updates and removal for Red Hat package manager (RPM) systems. YUM allows the user to update groups of machines without having to update each RPM separately. 

  • package manager or package management system (PMS)

    A package manager, also known as a package management system (PMS), is a program used to install, uninstall and manage software packages. 

  • software package

    A software package is an assemblage of files and information about those files. 

  • Using Clonezilla for simplified Linux server disk cloning

    Using the open source tool Clonezilla can save Linux administrators time when performing the common task of cloning Linux machines. Learn how the tool works and what options and configurations are supported and available. 

  • Fixing Linux I/O write performance problems

    Learn how to optimize your Linux server for I/O writes by adjusting I/O scheduler settings and journaling settings along with some advice about partition set-up. 

  • Analyzing Linux write performance problems with iotop

    Write performance on a Linux system may be causing a performance problem, and iotop shows you how the write processes are affecting I/O and storage. The iotop Linux command is more informative than top for determining the cause of the Linux server pe... 

  • Creating a simple backup solution for Linux with rsynch, SSH, and cron

    To create simple backups for Linux workstations, you can use rsynch with an SSH connection to a server and automate cron. Learn how to set-up your Linux system to automate your backups using tools available with every Linux distribution. 

  • Linux cloning over the network using netcat

    Use netcat to clone Linux images over the network onto multiple servers with a series of simple Linux commands including tar, tee, and dd. This alternative to tools like Clonezilla does not require setting up a separate server. 

  • Linux ext4 file system: Performance and compatibility

    The ext4 file system is now shipped with the most popular Linux distributions, but when should you use it and how do you optimize performance? Learn when to use the ext4 file system and how to set up your Linux system for maximized compatibility and ... 

  • Take control of the command line with 'A Practical Guide to Linux'

    A Practical Guide to Linux' is a comprehensive guide to core utilities, best system security practices and advanced Linux shell programming. Take a deeper look into the world of Linux in this Q&A with the author of 'A Practical Guide to Linux.'