We have analyzed our reader pageviews, and assembled these top five Enterprise Linux tips of 2011. It turns out that our most popular content this year covered Linux systems management and configuration, including a guide that covers everything you need to know about installing, configuring and using the open source configuration management tool, Puppet. Readers also appreciated our list of 10 command line time savers for Linux administrators. Check out our best tips of 2011 and see if there’s something you missed that can help you save time in the coming year.
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SELinux tutorial: Introduction to Linux kernel security
SELinux is a very useful tool for Linux security. Unfortunately, many administrators fear it is too complex, and instead disable this Linux kernel security tool. In this tip, you’ll learn how SELinux works, including how subjects and objects work, so you can begin using this valuable tool to keep your systems secure.
RHEL 6 ditches System V init for Upstart: What Linux admins need to know
The debut of Red Hat Enterprise Linux 6 debuted in late 2010, set the stage for System V init to begin fading to a memory in Linux boot systems as the new Linux distribution releases switch to using Upstart. Learn what is different with this boot service and how to work with it to get your Linux boot administration tasks finished.
A guide to becoming a Puppet master
Puppet Labs’s software has quickly become a well-known tool used by both large and small organizations. This guide can help system administrators make Puppet, the open source configuration management application, a valuable part of their data center toolbox. Learn how to implement Puppet, use new features and how to get the most out of it in your Linux data center.
Using Vagrant with Puppet to create VirtualBox hosts
Vagrant integrates with Puppet and Chef to automate configuration management to build VirtualBox hosts. Linux systems admins can use this technology for quickly creating development hosts and production hosts. In this tip, you’ll learn how to use Puppet's configuration management automation to create VirtualBox hosts with Vagrant and then quickly create development and production hosts.
Ten command line time-savers for Linux administrators
The Linux desktop has come a long way, but the command line can still be a powerful tool in the hands of a knowledgeable administrator. In this tip, you’ll learn 10 command line tricks to increase your proficiency and speed in Bash or other Linux shells.