Using Shred to Wipe Hard Drives - DoD Uses It - You Should Too!

Hard drive encryption (and to a lesser extent, secure hard drive erasing) has been in the news regarding child pornography crossing the US border, government officials around the world erasing incriminating emails and other nefarious headlines.

KBarcode prints labels as well as barcodes

Free software projects have the irritating habit of choosing names that fail to reflect what the software does. A case in point is KBarcode. Although KBarcode does generate the barcodes you would expect from its name, for most people, it is probably far more useful as a label and business card editor. Anyone looking for these functions could easily overlook it because of the name -- and that would be unfortunate because, even with some awkward interface designs, KBarcode still compares favorably to similar programs.

CPU Scaling, Ubuntu, battery life and you - how to scale your CPU

CPU Scaling is a feature built into most modern (mobile) CPUs that allows them to scale up or down in how fast they run and how much energy they suck down based on demand. If you have a fairly modern mobile computer there’s a very good chance that your CPU(s) can handle frequency scaling.

How-to: Installing Ubuntu Linux on a usb pendrive

This tutorial will show how-to install Ubuntu on a usb stick. Even though this tutorial uses Ubuntu as its base distribution, you could virtually use any type of Linux liveCD distribution.

LightZone 3.3 beta offers pro photo manipulation for Linux

We reviewed the RAW photo editor LightZone almost a year ago, when the Linux version of the product was a closed source -- but free -- download. After months of updates only for the Mac OS X and Windows versions of the application, Light Crafts has released a new beta for Linux. It is a substantial improvement -- but it also marks the end of the road for the free edition.

Open source on the big screen: Matt Ebb tells tales of Elephants Dream

Lead artist from Elephants Dream speaks about what it is like to make your own open movie using open source tools and the power of the community.
Need a project for the new year? You could consider supporting, contributing to, or starting an open movie. The open movie concept gained attention with the release of Elephants Dream in 2006. Following its success, the Blender Foundation is developing a follow up open movie called Peach, set for completion later this year.

Free/Open-source P2P File Sharing Software

A peer-to-peer (P2P) computer network utilizes varied connectivity linking participants in a set of connections and the collective bandwidth of network members rather than the usual centralized resources where a fairly low number of servers provide the core value to a service or application. Peer-to-peer networks are usually used for connecting nodes via largely improvised connections.

CPU load

One important thing to check on your Linux box, is the CPU utilization, specially if usually compile software, or if you have server applications running on your PC. One good tool to check this is: htop, which will show you a lot of useful information, the important data is the load average, that will show you if you are having processes waiting for the CPU or not.

Setup and Benchmark Encrypted Partitions in Ubuntu

In a previous article, I talked about using shred to securely delete files. Now we’ll delve into using encrypted volumes in Linux to secure our data in the first place, so that we don’t need to use programs like shred. Along the way, we’ll benchmark the raw performance of an encrypted volume and compare the results to an unencrypted volume and see just what kind of real world compromises we see.

Recovering Files by Data Carving with Foremost

Foremost is a console program to recover files based on their headers, footers, and internal data structures. This process is commonly referred to as data carving. Foremost can work on image files, such as those generated by dd, Safeback, Encase, etc, or directly on a drive.

How to fix your Windows MBR with an Ubuntu liveCD

Something happen to a windows Master Boot Record (MBR) that you’re responsible for? Want a very quick, very easy way to restore it with nothing but your craft, native intelligence and a liveCD?

Ubuntu releases ten lessons for the desktop

In the latest Ubuntu weekly newsletter the Ubuntu folks announced the release of the Ubuntu 7.10 Desktop Course. The modular course should take two days to complete all 10 of the lessons offered, but it is possible to cover topics and lessons independently of each other, learning whatever is of interest.

Ten Tips for KDE 4.0 Beginners

This is a list of ten tips that may help you out in getting started with KDE 4.0. All of these I discovered since installing KDE 4.0 in Ubuntu. Haven’t installed KDE 4.0 yet in Ubuntu 7.10? See yesterday’s post.

Pixel: Photoshop for the Linux Crowd

Linux users unhappy with the GIMP image editor may want to take a look at Pixel, a cross platform image editing application, which more closely mirrors the behavior of Adobe Photoshop. Although Pixel isn't free in either sense of the word — a licensed copy will set you back $38 USD and the source is not available — in terms of ease-of-use Pixel trumps the Gimp on a number of levels.

Flipping the Linux switch: Text editors for new users

First, a little experiment. What are the first three applications you think of when someone mentions text editors? If you can only answer Notepad, Notepad and Notepad, there's help for you yet.

KDE4 System Settings

In KDE4 they have changed the KControlCenter and named it System Settings. I found it to be easy to navigate and very intuitive. Lets start the visual review. The start page looks very similar to KControl of KDE3.

Automating Firefox with iMacros

Do you have some mundane task that you have to do regularly through a Web browser? Are you a developer who wants to automatically test the interface of your latest Web application? Maybe you want to log into all of the sites you visit on a daily basis with one click. If you fall into any of these categories, you should check out the iMacros Firefox extension.

First look to Spicebird 0.4

Synovel Techologies has released Spicebird 0.4, the first public release of its open source Mozilla-based personal information manager that integrates Thunderbird, Lightning and XMPP to deliver email, calendaring, instant messaging and other communication tools on a single product.

Five Compiz features to boost Linux productivity

The Ubuntu desktop may look a little brown and boring to first-time Linux users but beneath that conservative skin lurks a powerhouse of desktop features just waiting to come out, if you are using Compiz Fusion. Here we look at five of the better Compiz features that actually make us more productive as well as looking good.

Howto Mount NTFS VMware Virtual Disk Image (vmdk) read/write

If you want to Mount NTFS VMware Virtual Disk Image (vmdk) read/write follow this procedure. Vmware server comes with a little utility to mount the VMware virtual file systems called vmware-mount.pl. This utility works pretty well but mounts all NTFS partitions as Read Only!

Ubuntu Weekly Newsletter - Issue 73

The Ubuntu Weekly Newsletter, Issue 73 for the week January 6th - January 12th, 2008 is now available. In this issue: Hardy Alpha 3 released, Ubuntu 7.10 Desktop Course, KDE 4.0, a new member and MOTUs, MOTU Council election, an upcoming Hug Day, Forums tutorial of the week, and much, much more!

Lightzone: A Powerful Camera RAW Editor for Linux

If you're finding DigiKam or F-Spot, two of the many photo organization and editing tools for Linux, a bit limiting you may want to give Lightzone a try. The software isn't free, and curiously, isn't available for purchase either, but judging by the 20-day demo version currently available, it could end up a serious contender in the hybrid photo editing/managing market.

Ubuntu Remote Desktop Sharing

The following tutorial covers the process of remotely accessing and controlling a Ubuntu installation from another PC that is using Windows or Ubuntu. This process should also work for USB Pendrive linux and other Debian based operating systems (with minimal changes) running either from a local hard disk, CD or portable USB device as long as the system is connected to a network and or has an internet connection established and has Remote Desktop (vino vncviewer) installed.

psmisc: a closer look to a standard package

The psmisc package is probably installed on almost all Debian and Ubuntu installations and contains a number of small tools related to process management on Unix systems. Namely, these are pstree, killall, fuser and peekfd. Below follows a short description of these useful tools.

The Root of it All: The meanings of the folders in the / directory

Most linux users know about the root directory, but many of the folders contained in / are a mystery as to their purpose. I wanted to write about this in one of my switching to linux articles, but it would have made the article far to long, so I’ve made a separate post about it. I hope this article will better prepare you better for managing your linux system, no matter what you use it for. With no more ado, here we go!

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