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This is a new and interesting project that could be really useful both for companies that for private users, Guacamole is an HTML5 remote desktop gateway that provides access to desktop environments using remote desktop protocols like VNC and RDP. A centralized server acts as a tunnel and proxy, allowing access to multiple desktops through a web browser.

Be aware that Guacamole is only a remote desktop gateway, and cannot access your desktop’s display without a remote desktop server of some kind to connect to. Guacamole does not contain its own VNC or RDP server, it’s a java based program so it’s distributed as a .war package.

The client requires nothing more than a web browser supporting HTML5 and AJAX.

Linux has had a relatively difficult time in making its impact on market shares for gamers. Dominated by Microsoft and Mac, the gaming network appears to be fairly full. In 2013, though, that could all change. Linux-powered game consoles are on their way and this could greatly impact the way in which games are played and the publishers of these sources of entertainment. Not sure what to expect in this new year? The following explains more about these Linux-powered offerings and what they could do to the market. Specifically, focus in this article is not the systems themselves, rather, but the relationship and impact their anticipation is already having on the overall nature and scene of the gaming world.

With the significant prevalence of Linux web servers globally, security is often touted as a strength of the platform for such a purpose. However, a Linux based web server is only as secure as its configuration and very often many are quite vulnerable to compromise. While specific configurations vary wildly due to environments or specific use, there are various general steps that can be taken to insure basic security considerations are in place.

Many risks are possible from a compromise including using the web server into a source of malware, creating a spam-sending relay, a web or TCP proxy, or other malicious activity. The operating system and packages can be fully patched with security updates and the server can still be compromised based purely on a poor security configuration. Security of web applications first begins with configuring the server itself with strict security in mind.

oday i return to the topic of encryption and security and in particular I’ll show how to simply encrypt a file with GnuPG, this can be really usefull to encrypt a single file where you have your passwords or some personal information that you want to keep safer.

GNU Privacy Guard (GnuPG or GPG) is a GPL Licensed alternative to the PGP suite of cryptographic software. GnuPG is compliant with RFC 4880, which is the current IETF standards track specification of OpenPGP. Current versions of PGP (and Veridis’ Filecrypt) are interoperable with GnuPG and other OpenPGP-compliant systems.

This software is frequently integrated with mail client so it can sign, crypt or do both actions on the mail you send and receive, and now we’ll see how to use it on the command line to encrypt a file.

Nitro is simple, fast and powerful. It can synchronize your appointments on the cloud with Ubuntu One and Dropbox, so you can access them from any computer, not lose any of your tasks and you’ll never get a conflicted copy. Nitro also creates a todo.txt file so you can see or embed your tasks in plain text. Nitro is available for a variety of platforms such as Linux, Mac and as extension of Google Chrome / Chromium. And the development team is working on mobile versions and so they’ll be available in the future.

Today I’ll present you some good solutions to save your home directory, this is the reason I’ve called this type of backup “lightweight”, the goal is not to restore the full operating system, just all the information you have in your /home directory, that for desktop usually means save all important information of your computer.

Naturally on a server this approach is not so useful because you want to save your websites, databases and all programs configurations, so don’t use this approach on a server.

[d0x3d] is a boardgame designed for informal security education, this is an incredibly fun game that proactively teaches about network integrity and the security of information. Inspired by Forbidden Island, d0x3d! and is released under an open source license. It requires only a small number of people but packs a very powerful lesson. Incorporating it into internet security curriculum provides an enjoyable lesson for sure. This game has proven to be an invaluable teaching tool since people tend to learn better when shown by example, and it’s proven that a real hand on approach has a lasting impression.

It can be very convenient, for those who use services such as zoneminder, rtorrent, etc., to have a “Gmail Relay” to send maisl from your Gmail account. In this guide we will see how to configure postfix to send email with our account username@gmail.com. The guide is based on ArchLinux, but apart the installation of the packages, the configuration is the same also on other distributions such as Debian or Centos.

I’ve bought Humble Bundle 7 (still available for 24 hours) and a big positive surprise of this bundle has been Legend of Grimrock. This is a classic RPG game, you’ll have the control of 4 characters that you can choose between 4 races and 3 classes with these “heroes” you’ll have to walk in a dark dungeon searching to regain your freedom. The game it’s a slow paced real time RPG, where you have to use your wits and intelligence much more than the muscles of your 4 Heroes, the graphics is really well done and i suggest to play it during night time or without strong lights to have a great game experience.

On the 21 of December Linux Mint 14 Xfce has been released, codename Nadia. This release of Mint is based on Ubuntu 12.10 and shipped with the XFCE desktop environemnt as my readers probably know I’ve installed Mint 13 XFCE on my new desktop and so I’ve decided to upgrade my installation to this new release.

I’ve just recovered 2x 500 GB sata disks from an old installation, so I opened up my new Desktop and connected them to my main Linux machine, these 2 disks have been used for around 3 years on the the other installation, so I prefer to use them in a mirrored configuration, or RAID 1, so everything that is written on a disk is copied automatically also on the the other, and there is no loss of information if 1 of 2 disks broke up.

At the moment I use a Mint 14 XFCE edition, that is totally compatible with Ubuntu 12.10, and in my point of view for some aspects much better, so in this guide I’ll use commands that are compatible for Mint , Ubuntu and Debian, for other distributions you’ll have to search for your packages, but the configurations and commands will be the same.

A task of any operating system is to provide software that strongly increases its security. A lot of programs of this type have been created; some are better than others. What does it look like in terms of Linux? Of course, here we have many more choices when it comes to this type of software, but some software is worth recommending. Some people already know what I mean: SELinux. Why choose this solution? Why do I think it is so different from other software of this type? And the last key question: who really should use it?

This system, as the name suggests is Security Enhanced Linux! So I invite you to read this article and learn about this tool.

Mass renaming files is no possible with the standard linux command mv, but it’s possible to achieve this goal in many different ways, from some bash magic, to programs that do exactly this, in this article I’ll work with both the terminal and with graphical tools.

We are close to Christmas and it’s that time again Humble Indie Bundle (HIB) number seven is been released this is the list of games that you’ll find this time: The Binding of Isaac (and its DLC, Wrath of the Lamb), Closure, Shank 2, Snapshot, and Indie Game: The Movie! And if you pay over the average, you’ll also get Dungeon Defenders (and its DLC) and Legend of Grimrock !

On a former article I’ve presented 3 command line commands that you can use to get information on your Linux box: lsusb, lspci and lshw, they are really good and I use the first 2 in a lot of situation where I want to check if all my devices works correctly. Today I’ll propose to you another software that has become popular in this genre: hardinfo, a software designed to be a System Profiler and Benchmark tool, easily usable by everyone and shipped by default by some of the mainstream Linux distributions.

Only recently I’ve started to work with Git, don’t blame me I’m mainly a system administrator not a developer, and one of the things I’ve been asked to setup is a way to have a cloned Git project shared over SSH to a particular group of person that share the same linux group.The issue is this setting are the permissions that must be properly set so you and the others don’t end up stomping on each other when pushing changes, so let’s see how to achieve this goal quickly.

Perhaps someone is old enough to remember the original Lemmings game, a puzzle-platformer video game developed by DMA Design and published by Psygnosis in 1991. Originally developed for the Amiga, Lemmings was one of the most popular video games of its era, the basic objective of the game is to guide a group of humanoid lemmings through a number of obstacles to a designated exit. In order to save the required number of lemmings to win, one must determine how to assign a limited number of eight different skills to specific lemmings that allow the selected lemming to alter the landscape, to affect the behavior of other lemmings, or to clear obstacles in order to create a safe passage for the rest of the lemmings.

In the past I’ve wrote an article about the commands du and df that can respectively give you information about the Disk Usage and the Disk Free of your Linux computer. I personally use both of these commands a lot of times at work to check file system and/or directory, but I also understand that on a desktop with Linux you could use something more graphical to see the status of your partitions or directories, so today I’ll show you some programs that can achieve this goal: baobab, cdu, ncdu, JDiskReport and Filelight.

What's shared memory and how you can use it to speed up your applications on Linux ?

In this Hub I'll show you the main commands to know and use shared memory and how to use it with Firefox

In this article I'll show you what's umask and how to use it to get the right permissions on your files. umask (user mask) is a command and a function in POSIX environments that sets the file mode creation mask of the current process which limits the permission modes for files and directories created by the process. A process may change the file mode creation mask with umask and the new value is inherited by child processes.