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3 Live Linux distribution for system administrators

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Aug 262011

Sometimes bad things happen, and you must recover your desktop or server from an error.

For this delicate work there are some specialised Linux Live Distributions that once booted allow you to make a lot of tasks, like mounting and repairing disk partitions and file system, for this it’s important that the live Distro has support for many different File System type and LVM, it should also have a good support for the network, it’s possible that you need to download or move something on the computer, and so it’s also important to have a wide range of network support, wi-fi too maybe.
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How-To: Create ISO Images from Command-Line

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Aug 252011

Original article by Craciun Dan published on Tuxarena, the article is based on the installation and use within a distribution with packages .deb

For this tutorial we’ll use the genisoimage utility, developed as part of the cdrkit project. genisoimage is a command-line tool for creating ISO 9660 filesystem images, which can be burnt after to a CD or DVD using wodim or some other burning tool. To install it open a terminal and type the following as root:

apt-get install genisoimage

Now, let’s use the simplest syntax to create an ISO image out of a directory and its contents:

genisoimage -o output_image.iso directory_name

Keep your disk clean with BleachBit

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Aug 242011

This is an utility to clean junk to free disk space and to maintain privacy deleting in a secure way files and directory.

BleachBit quickly frees disk space and tirelessly guards your privacy. Free cache, delete cookies, clear Internet history, shred temporary files, delete logs, and discard junk you didn’t know was there. Designed for Linux and Windows systems, it wipes clean 90 applications including Firefox, Internet Explorer, Adobe Flash, Google Chrome, Opera, OpenOffice, Safari,and more

Beyond simply deleting files, BleachBit includes advanced features such as shredding files to prevent recovery, wiping free disk space to hide traces of files deleted by other applications, and vacuuming Firefox to make it faster. BleachBit it is open source.
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Enable automatic security update in Debian/Ubuntu

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Aug 232011

The thought that a server update itself (and maybe even execute a reboot) is not actually something that makes me feel so confident, but it is certainly better than not applying patches to serious security bugs that could expose services to large risks.

So today we’ll see how to use the package unattended-upgrades, it’s available in Debian and Ubuntu and can help you schedule what and when update automatically on your machines.

OpenELEC, a media center based on XBMC

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Aug 192011

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OpenELEC is an embedded operating system built specifically to run XBMC, the open source entertainment media hub. The idea behind OpenELEC is to allow people to use their Home Theatre PC (HTPC) like any other device you might have attached to your TV, like a DVD player or Sky box.

But before continuing with OpenELEC i do a step back and say a few words about XBMC.
Xbox Media Center (XBMC) is an open source program created for the Xbox and now available on xbmc.org for Mac, Windows, Linux, Android, Apple TV and Xbox. On all platforms other than Xbox, XBMC acts as an application, possibly launched at boot time or later.

XBMC can play most formats of audio/video, and if there is an internet connection it’s able to use network services, such as getting movie and album reviews, or view movies in streaming.
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