Showing headlines posted by linuxaria

Sometimes we want our Linux box to speak to/for us.This ability is very useful to make announcements and alerts in case of many critical events in our machines or can be used just for sheer fun. There exists a command line synthesized known as eSpeak that comes pre installed in Ubuntu. You can also install it on debian systems by typing the command sudo apt-get install espeak in a command console .For all other operating systems you can install it from source available at http://espeak.sourceforge.net/download.html

A shell is the command interpreter program that serves as an interface between some users and the operating system itself. We say some users because most users rely on the graphical user interface. The Windows shell is the DOS command line interface accessed by clicking on Run and then entering the cmd command. The Windows graphical user interface is Explorer. This article describes the Damn Small Linux shell interface and several utilities, useful programs that may be launched from the shell. A subsequent article will describe the corresponding graphical user interface.

I think that a lot of computer user are now used to the concept of copy on the “Cloud”, with tools like Dropbox or Ubuntu One, you can have the same file saved in multiple computers (also with a different operating system) and at the same time have a copy of it on the Cloud. Usually you get some free space to start and if you need more you have to pay a monthly or yearly price, but these concepts where already there and available for Linux with Unison.

Unison is a file-synchronization tool for Unix and Windows. It allows two replicas of a collection of files and directories to be stored on different hosts (or different disks on the same host), modified separately, and then brought up to date by propagating the changes in each replica to the other.

In these days i’ve worked a lot on Red Hat Enterprise and Centos machines, and so i’ve used yum to install, upgrade, remove and download packages. I’m more used to .deb packages (or the portage system), and so for me these plugins are both new and really useful to extend the basic functions of yum.

Have you accidentally deleted an important file because you are in a habit of using “Shift+Del” rather than delete only?? Well don’t panic. There is a utility named as “scalpel” which helps you in recovering the so called “permanent deleted” files. Actually when you delete a file permanently (Accidentally or By Intention) , It doesn’t get removed from your hard disk. It get stored in certain blocks of the storage device and they continue to exist in the blocks unless you overwrite them with another files. This article will talk about utilities that will help you in the file recovery.

Since I use Linux for several years now I’ve found Linux users of all kinds, having a blog has helped me to identify many types of Linux users. But of all the guys there are some that are very annoying and I will try to classify them. I promise that this post is angering some who feel identified.

Unix based operating systems like Linux offer a unique approach to join two discrete commands, and generate a new command using the concept of pipe(lines). For example, consider command1|command2. Here, whatever output is generated by the first command becomes the standard input for the second command. We can develop more and more complex Unix command sequences by joining many commands while maintaining input output relationships.

What exactly is the Linux Kernel and what makes it different than, say Windows or Mac System X? I’m not going to get too deep into the weeds on this one because, quite honestly, I’m not qualified to discuss Kernels beyond the basics. I’m really going to focus on the hardware/software interface aspects of the kernel pros and cons. First point I’m going to make is that Linux is a kernel, not an Operating System. GNU/Linux is the Linux kernel plus added external software such as a Window Manager like Gnome, utility software, office software and other components to make the make GNU/Linux a complete system for running your computer.

This is the second part of my article regarding Indie games for Linux. In the first part i’ve listed 5 Indie game freely downloadable for Linux, and on this one i’ll present you 5 games that must be bought before you can download them. Today games are: Towns, Eschalon, Survivors of Ragnarök, Atom Zombie Smasher and Steel Storm: Burning Retribution. But in the past I’ve already talked of some great Indie game so you can check also my articles about: Amnesia: The Dark Descent (probably the best horror game around in these days) and Dungeons Of Dredmor (a rogue-like game with a comic background)

In a former article regarding Linux games a reader commented that for Linux there are always the same title and nothing new really comes out. So i’ve decided to explore a bit the indie game market and make 2 post about them, in this one i’ll show you 5 freely downloadable Indie games, in the next one i’ll post 5 game that must be purchased (but the costs are relatively low). So today we’ll take a look at: dwarf fortress, epic inventor, abuse, smokin’guns and xonotic.

Below, we have listed the most common OpenSSL commands and their usage in category for : General OpenSSL Commands, Checking Using OpenSSL, Debugging Using OpenSSL and Converting Using OpenSSL

EncFS provides an encrypted filesystem in user-space. It runs without any special permissions and uses the FUSE library and Linux kernel module to provide the filesystem interface. EncFS is open source software, licensed under the GPL.

As with most encrypted filesystems, Encfs is meant to provide security against off-line attacks; ie your notebook or backups fall into the wrong hands, etc. The way Encfs works is different from the “loopback” encrypted filesystem support built into the Linux kernel because it works on files at a time, not an entire block device. This is a big advantage in some ways, but does not come without a cost.

Bash has been around since pre-historic times, at least before GNU/Linux’s first release in 1991. In this article I'll present how i used this powerful tool and some of the links I've used to solve some common problems. My first personal encounter with Bash was in 1993. This was two years before Microsoft Windows 95 was released and Windows 3.1 was just a bad joke. The Software Development Company I was working for was using SCO Unix running on i486 systems to power Kiosks for displaying, printing and selling sheet music.

In the 2 former articles of this series we have saw OCSInventory and Fusion Inventory 2 software that can create an asset inventory with your computers hardware and software, they both work with agents on the remote machines that send the information on a central server, where you can see, manage and query these information. Today i present you GLPI, another French product, that can use both of these Inventory solutions and add on top of them a lot of useful things, like an embedded Ticketing System, a Financial Management for the assets and It has enhanced functions like a job-tracking system with mail notification and methods to build a database with basic information about the network topology.

The filtering capabilities of Wireshark are very comprehensive. You can filter on just about any field of any protocol, even down to the HEX values in a data stream. Sometimes though, the hardest part about setting a filter in Wireshark is remembering the syntax! So below are the top 10 display filters that I use in Wireshark. Please comment below and add any common ones that you use as well.

The Internet is a great place to scratch the itch of curiosity. I’d heard some interesting things about Arch Linux so I Googled it. I wanted to know what the Distro was all about and a bit of it’s history.

I accidentally discovered The GNU/Linux Distribution Timeline which informed me where Arch Linux was derived from (Crux) and what had branched off from it (7 current branches)

It charted the Galaxy of GNU/Linux Distributions. Organized the mess that Linux Distros have become into an understandable chart. A huge svg graphic measuring 2,120 x 8,330 pixels

A chart that is very detailed. Remember that Distro of Linux meant to be a replacement for Windows, “Lindows”, that first appeared in 2001? It had it’s security dumbed down to about the Windows 95 level.

Thanks to the Humble Bundle i’ve discovered also this nice game: Dungeons of Dredmor. It’s a classic Rogue-like game, you have to move your hero in 10 level of dungeons where you’ll fight against terrible monsters, to get new equipment, skills and fight the big bad Evil guy, from the official site:

Long ago, the Dark Lord Dredmor was bound in the darkest dungeons beneath the earth by great and mighty heroes. Centuries later, the magical bonds that hold him in place are loosening and his power grows ever stronger. The land cries out for a new hero, a powerful warrior or a mystic wizard like those spoken of in the prophecies of yore.

What they have, unfortunately, is you…

Nothing new on the story side, what make Dungeons of Dredmor so appealing it’s it’s comic style and the humour that the authors have used in the whole game.

Ubuntu started shipping with the release 10.04 with a new init system called Upstart that has babysitting built in, so let’s talk about that. I’ll be doing all of these examples on Ubuntu 10.04, but any upstart-using system should work. For me, the most important two features of Upstart are babysitting and events. Upstart supports the simple runner scripts that daemontools, supervisord, and other similar-class tools support. It also lets you configure jobs to respond to arbitrary events.

As recent as the last 2 years I’ve noticed that the formerly Microsoft dominated PC world seems to be taking Linux more serious. Since Dell took that first pioneer foray into shipping systems with Linux pre-installed in 2008, other manufacturers have stopped ignoring the Linux world by writing drivers for Linux and porting their software for Linux. I make some of my income through an on-line outsourcing agency called oDesk. When I first heard about the agency I looked it over critically and was struck by the serious business professionalism of the site.

Mini guide to clone 2 PC without any special tools. With two Linux livecd, can be anything you like the only requirement is the support to the network, you can proceed using the command “dd” and transferring the data over the network with the comand “netcat“.