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This guide explains how to set up software RAID1 on an already running Debian Lenny system. The GRUB bootloader will be configured in such a way that the system will still be able to boot if one of the hard drives fails (no matter which one).

I was showing a friend how to be more productive while working in a terminal and she asked me about the keys I was pressing during the demonstration. I explained some of the keyboard shortcuts I use and she asked if I could write them down for her.Since this was the third person to ask me for a copy of the keyboard shortcuts I use, I thought I'd post them here in the hopes that they can help others too.

Now that I am done with the implementation of RHE Cluster with GFS2, I now need to setup monitoring. As you all know, monitoring is a vital part of any environment. Even though we have a cluster of nodes setup, we still need to be aware of what is happening. I created two new commands. The first command is to emulate clustat, but through python and SNMP. The second command is to monitor the cluster using snmp and python ( Nagios/Zenoss Comapatible ).

The name Ruben Unteregger may well become more newsworthy in the next few days. Unteregger has been working at the Swiss ERA IT Solutions company to develop the trojans MegaPanzer and MiniPanzer and has released the code under GPL.

Recently I started using Google's browser Chrome (well technically chromium) on Linux for my browsing needs. It is very fast, low on CPU and Memory, I quite like it. I am now also sure Flash plugin is teh CPU hog pig :) Anyway, one really cool feature I missed from Firefox was the ability to set multiple pages as the homepage. In firefox, I'd just click the Home button, and it would open all of the pages I regularly follow, I could not find this functionality out of the box with Chrome. What is a geek to do ? Well of course write some javascript :)

By default, the root account password is locked in Ubuntu - Canonical neither supports nor advocates enabling the root account. This means that you cannot login as root directly or use the su command to become the root user. However, since the root account physically exists it is still possible to run programs with root-level privileges. This is where sudo comes in - it allows authorized users (normally "Administrative" users) to run certain programs as root without having to know the root password.

The Apache.org web-site is currently displaying a message that the service is off line. The Infrastructure team at the Apache Software Foundation have taken the systems off line while investigating a compromise on one of their servers. According to the message, the problem relates to a compromised SSH key and "not due to any software exploits in Apache itself".

While most open-source games still lack the graphics quality and features that the latest proprietary game engines support within retail games that are backed by the large studios, their quality has been improving as with their artwork and other characteristics. As an example of this, Warsow 0.5 made it out this week with a horde of new features and improvements.

SCO Owns Unix--Alert the Media! SCO owns all rights and ownership of the core UNIX operating system source code originally developed by AT&T/Bell Labs. SCO’s ownership includes system source code, including all versions and copies, SCO OpenServer, and substantial copyrights and source code to UnixWare. SCO is the exclusive licensor to UNIX-based system software providers.

At work I'm tied to a windows machine, however I have been able to use GNU/Linux which is where I'm most productive. First, I tried working with Portable Ubuntu. It works pretty well, however the latency can be a little high sometimes (Firefox being the most obvious case that I noticed). About a week ago I started working on a clustering experiment and wanted to give it a shot inside Portable Ubuntu. However, I discovered it wasn't possible because its kernel doesn't support bridging (I was going to use some qemu virtual machines for the experiment).

Tuxera, the Finnish company behind the NTFS-3G open source driver, on its own initiative entered into an agreement with Microsoft over exFAT drivers.

The major Linux distributors have released kernel updates to close a critical security vulnerability, a pre-release version of Fedora 12 was made available and Debian wants more structured release cycles. There's also been commotion about a default desktop for openSUSE, while Novell announced the formation of a dedicated team for the community distribution. The CentOS project seems to have overcome its internal problems and finally released version 4.8 of the free Red Hat clone.

A growing number of platforms implement IPv6, allowing Apache to allocate IPv6 sockets and handle requests which were sent over IPv6. This article explains how to setup dual stacked, IPv4 and IPv6 enabled Apache networking under any Linux or UNIX like operating systems. You need to update httpd.conf file with the Listen directive. It instructs Apache to listen to only specific IPv4 and IPv6 addresses or ports.

Currently Microsoft is feeling the full impact of the global economic slowdown. Reduced demand for its Windows OS & other software products has had a negative impact on the software giant. Both sales & profit are down. Meanwhile, Linux isn't feeling any impact at all.

You can change the owner and group of a file or a directory with the chown command. Please, keep in mind you can do this only if you are the root user or the owner of the file.

Set the file's owner:
$ chown username somefile
After giving this command, the new owner of a file called somefile will be the user username. The file's group owner will not change. Instead of a user name, you can also give the user's numeric ID here if you want.

High on my list of obvious solutions to common problems is smart-card password management. Industry, when it ponders the issue at all, keeps offering centralized authentication schemes that they control. Nice user-controlled smart cards to use as password safes are apparently too user-friendly for the titans of tech. I was originally thinking of two types of smart cards: the traditional credit-card magnetic-stripe type that requires a scanner, and a little USB device.

For anyone that extensively uses Skype on Linux, you will probably want to head on over to the Linux Skype Developer page to fetch the latest beta. Skype has just rolled out the first 2.1 beta (2.1.0.47 Beta) of the Linux Skype client, which adds several new features and also brings a number of fixes and other improvements.

When I am at school, and I read that Slackware 13 is out, I need to have it. And I want it at home. So, what I can do is SSH into my machine, wget it, and it is done when I'm at home. But, at school SSH is blocked, and a lot of other things, like FTP, Youtube and they have a large Internet Filter. So, I need to have an other solution. Now I have it. You need to have an web server that is able to do PHP. I myself use lighttpd with PHP via fastCGI.

An open source project that wants greater visibility may well benefit from a mention in the technical or business media. But because open source communities are primarily technical communities, they don't necessarily know how to talk to the press. Here's a few useful things to know.

Opensourc3 is a magazine dedicated to Unified and Cloud Computing using open source technologies. It is published on a monthly basis