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  • Five Linux commands you have (probably) never heard of

    Learn about five of the more rarely used Linux commands (logsave, diff3, pstree, nl and split) that are useful, with a description of each command's flags and options. These commands work well for file management, tracking, and output and process ana... 

  • Backing up the Linux master boot record

    The Linux master boot record (MBR) contains GRUB and the partition table, and to avoid crippling boot errors, it is a good idea to make a backup of it. Learn how to backup the MBR and how this effort can pay off when troubleshooting a Linux boot prob... 

  • Configuring YUM on Linux

    YUM is a package manager for RPM systems, it is made to update groups of machines without having to update each specific RPM. Learn how to configure it using yum.conf and get some basic commands. Yum allows use of a single command to update all syste... 

  • Keys to successfully running Samba in a production environment

    Running Samba in a heterogenous production environment with Linux/Unix and Windows systems is critical to business. Learn best practices for configuration, backup, and support. Proper implementation of change control, keeping an updated version of Sa... 

  • Understanding Linux system performance management using top

    The top command in Linux can help Linux server administrators determine how their system is performing, but the information provided may not be clear. Learn what top results mean, including load average values, memory efficiency, and process resource... 

  • Linux regular expression tutorial

    Using regular expressions in grep, awk and sed tools to find a specific text string is a useful tool for Linux administrators. Regular expressions in Linux provide more specific and efficient returns. 

  • Is Nagios right for your data center?

    Are you evaluating Nagios for your data center monitoring tool? Systems management expert Roger Rustad makes the case for Nagios and outlines helpful plug-ins. 

  • How to use SSH Public/Private keys in PuTTY

    In this article, you'll learn how to make communication between Linux Server and PuTTY more secure by using SSH public/private keys. 

  • Virtual host management: How to use Puppet on Red Hat Enterprise Linux 5

    Make administration of your virtual hosts easier with Puppet, a centralized configuration management tool, on Red Hat Enterprise Linux 5 (RHEL 5). Learn how to install and configure this Ruby-based application, as well as mastering nodes. 

  • Chapter 20, Adding, updating and removing software, from "Ubuntu Linux Bible"

    Troubleshoot and tackle repositories, software and updates in Chapter 20 -- Adding, updating and removing software -- from the "Ubuntu Linux Bible."