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system administration tasks

Puppet is an open source configuration management tool. It is written in Ruby. This software is considered as an alternative to Cfengine configuration management system. I've used Cfengine for:
=> Pushing configurations
=> Applying patches
=> IT management
=> Software management
=> Configuration management etc

Both project reduces complexity and non-portability of shell scripting for Unix / Linux configuration management. From the Linux.com article:

The Puppet project allows you to issue system administration commands to one or more machines, and will smooth over the differences between distributions for you. For example, if you want to install MySQL, that action should be your primary aim, and you shouldn't have to worry about if the machine is running Maemo, Ubuntu, or Fedora.

=> Puppet can ease system administration tasks across the network

Linux Administrative tasks LPI exam tutorial

This tutorial is organized according to the specific objectives of the LPI exam for this topic. This tutorial can help you study for certification -- or simply build a solid foundation in Linux system administration.

In this tutorial, Ian Shields continues preparing you to take the Linux Professional Institute Junior Level Administration (LPIC-1) Exam 102. In this sixth
in a series of nine tutorials, Ian introduces you to administrative tasks. By the end of this tutorial, you will know how to manage users and groups, set user
profiles and environments, use log files, schedule jobs, back up your data, and maintain the system time.

LPI tutorial topics

  • Manage user and group accounts
  • Tune user and system environments
  • Configure and use system log files to meet administrative and security needs
  • Automate system administration tasks by scheduling jobs to run in the future
  • Maintain an effective data backup strategy
  • Maintain system time

LPI exam 102 prep, Topic 111: Administrative tasks Junior Level Administration (LPIC-1) topic 111 (free registration required)