Enabling remote desktop on a VirtualBox Machine February 14, 2011
Posted by galigio in Computers & Internet, Technology and Software, windows, Linux, GNU/Linux, Linux & OpenSource, Technology News, Technology, Tech, Tecnologia, opensource, OS X, OpenSolaris.Tags: windows, open source, Ubuntu, Linux, OS X, Solaris, VirtualBox, virtual machine, vmware, remote desktop, Remote Desktop Protocol, Command-line interface
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To enable remote desktop on a VirtualBox machine, you have to follow these steps:
VBoxManage modifyvm MachineName -vrdp
This command enables rdp on the virtual machine
VBoxManage startvm MachineName -type vrdp
It starts virtual machine, listening for rdp request on port 3389 (default port)
rdesktop-vrdp localhost
Connects virtual machine with rdp (You can use rdesktop too).
If you want to change rdp port, use this command:
VBoxManage modifyvm MachineName -vrdpport
Also, enabling authentication for rdp is possible:
VBoxManage modifyvm MachineName -vrdpauthtype null | external | guest
VBoxManage is the command line interface of the VirtualBox.
You can make these settings with GUI: Settings -> Remote Display -> Enable VRDP Server
If you want to use your virtual machine with vrdp only, you can use this command simply:
VBoxHeadless -startvm MachineName
Note: RDP server is not included in Open Source Edition of the VirtualBox. If you want to use this feature, you have to use closed-source edition.

Open Source tools and applications for web developers January 24, 2011
Posted by galigio in Computers & Internet, free software, free software download, Free Software Magazine, Freeware, freeware blog, Freeware Reviews, freeware tip, freeware tips, GNU/Linux, Linux, Linux & OpenSource, Tech, Technology, Technology and Software, Technology News, Tecnologia, Ubuntu.Tags: Aptana, Eclipse, Freeware Reviews, html, Java, JavaScript, JEdit, NVU, open source, Programming, Quanta Plus, Software, web develop
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Several open source tools have evolved in the past and have become popular with the developers too. These tools have gained popularity not only because they come free but because of the ease to work with and the features. First let us see some code editors:
- Aptana: It is a free, JavaScript focused development environment, cross-platform and open source for building Ajax applications. It supports HTML, JavaScript, CSS languages, FTP/SFTP and has a powerful JavaScript debugger that can help in troubleshooting your code.
- Eclipse : It is an open source software framework written mainly in Java. It is an integrated development environment consisting Java development toolkit (JDK) and compiler (ECJ) for developing applications in Java. Developers can extend its capabilities by installing plug-ins such as development toolkits for other programming languages written specifically for eclipse software framework. Language packs for over a dozen languages are available.
- JEdit : It is a programmer’s text editor which has many hundreds of man-hours of development behind it. It is a java-based solution and a cross-platform product which can work on many operating systems like Windows, VMS, UNIX, OX/2 and Mac OS X.
- NVU : It is a web authoring system for Linux desktop users, Macintosh users as well as for Microsoft windows and is a competitor for similar products like Dreamweaver and Frontpage. Nvu actually means new view and makes managing a website very easy. Now even people without knowledge of HTML or technical expertise can create web pages and manage a website.
- Quanta Plus : It is a web development environment with a lot of features and is highly stable. Quanta has a vision of achieving maximal user extensibility through the best architectural foundations, best, efficient design and natural use of code.
LibreOffice vs. OpenOffice! What’s the difference? January 6, 2011
Posted by galigio in Computadoras, Computers & Internet, cross-platform, GNU/Linux, Linux, Linux & OpenSource, multiplatform freeware, Multiplatform software, Tech, Technology, Technology and Software, Technology News, Tecnologia, windows.Tags: LibreOffice, Linux, Mac OS X, Microsoft Office, Office suite, open source, OpenOffice.org, productivity platform
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Since the end of September 2010, a group of German OpenOffice volunteers left definitively the project to join the The Document Foundation and develop a fork version of the famous free productivity platform now controlled by Oracle. After
just few months we have LibreOffice: a (more or less) new cross-platform productivity software based on OpenOffice version 3.3 beta. We compared both the free suites and apparently we did not notice particular differences in features and tools. Also the graphic interface is similar between the two platforms and the buttons position is the same. At the moment LibreOffice supports less languages in its Linux and MAC OS X versions and it is not compatible with Solaris based PCs. Both the productivity platforms are able to use the OpenOffice extension library. Consequently, it is clear that it’s too early to notice relevant technical differences between the two competitors but, for sure, something will show off in the next versions. In fact LibreOffice has been created to guarantee a vendor independent office suite which can be developed with no copyright software chunks. The goal is prestigious and we can only say, Good Luck LibreOffice!

LuckyBackup: Copias de Seguridad Sin Complicaciones November 29, 2010
Posted by galigio in Computers & Internet, Technology and Software, Freeware Reviews, Free Software Magazine, freeware tip, Linux, GNU/Linux, Linux & OpenSource, Freeware, Technology News, Technology, Tech, Tecnologia, backup, open source, open source software.Tags: Freeware, open source, Ubuntu, Linux, free software, backup, security, free backup software, system administration, seguridad
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En estos días he estado buscando un programa que permita hacer Copias de Seguridad y que sea de uso practico, sencillo y muy intuitivo. Después de ver varios programas me he decantado sin lugar a duda para LuckyBackup. Para instalarlo es posible directamente desde los repositorios de nuestro sistema (Ubuntu y derivados) o directamente desde su propia Web y bajar la ultima versión 0.4.4 . Yo he instalado esta ultima versión y tengo que confirmar que es el mejor programa de Copias de Seguridad que he encontrado hasta el momento. LuckyBackup es muy fácil de configurar y permite efectuar diferentes sincronizaciones y mantener a salvo nuestros datos y todos los archivos. También he echo diferentes pruebas pasando carpetas a memorias USB, Disco Duro Externo y Disco Duro Interno, todo sin ningún problema (Descarga LuckyBackup).
Linux evolution! November 15, 2010
Posted by galigio in Computers & Internet, Technology and Software, Linux, GNU/Linux, Linux & OpenSource, Technology News, OS independent, Technology, OS News, Tech, Tecnologia, open source, open source software.Tags: open source, Linux, video, YouTube, linux youtube, OS, evolution, open OS, commercial, Linux commercial, Linux evolution
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How to protect your profile and emails on Thunderbird 3 (Ubuntu and Windows instructions) October 25, 2010
Posted by galigio in Computers & Internet, freeware tip, freeware tips, GNU/Linux, Linux, Linux & OpenSource, security, Seguridad, Software, software for Linux, Software News, software newspaper, Tech, Technology, Technology and Software, Technology News, Tecnologia, Thunderbird, windows.Tags: email, open source, profile, security, seguridad, Software, Thunderbird, tip, tips and tricks, trick, TrueCrypt, Ubuntu, windows
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On Thunderbird, the only way to be 99% sure nobody will read your emails is to save your profile on an encrypted folder (or disk partition) using e.g. TrueCrypt but if you are not concerned that you are under surveillance, you can simply use a quick and useful trick that allows Thunderbird to ask for the Master password every time you launch it.
In Ubuntu you have to follow two different steps. First of all, go to Edit —> Preferences —> Security —> Passwords and create your Master Password. Secondly, go to Edit —> Preferences —> Advanced —> Config Editor (click on “I’ll be careful, I promise”). Then in the filter bar, type password and change the parameter for mail.password_protect_local_cache to True. The next time you will launch Thunderbird nothing will be displayed (old and new emails) before you insert the correct Master Password.
If you are using Thunderbird on Windows you have to modify mail.password_protect_local_cache going to Tools —> Options —> Advanced —> Config Editor (click on “I’ll be careful, I promise”). Then, as for Ubuntu, in the filter bar type password and change the parameter for mail.password_protect_local_cache to True.

How to uninstall software on Ubuntu October 21, 2010
Posted by galigio in Computers & Internet, GNU/Linux, Linux, Linux & OpenSource, Software, software for Linux, Software News, Tech, Technology, Technology and Software, Technology News, Tecnologia, tools, Ubuntu.Tags: comandos, DEB, Linux, manual, open source, open source software, Package, Software, Terminal, tips, tutorials, Ubuntu, uninstall
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Installing software on Ubuntu is really easy but sometimes we can have problems to uninstall it if we have not used the Package Manager (Synaptic till Ubuntu 9.04 and later through the Software Center) or a .deb package. To fastly uninstall all the software you do not need or you are not fond of, you can type in the Terminal:
sudo dpkg -r your_file
An alternative and powerful way is typing:
sudo apt-get remove your_file
(where your_file it is the name of the software you want to remove)
or, if you want to completely cancel also the configuration files:
sudo apt-get --purge remove your_file
If you want to check what software is installed on you Ubuntu you can use:
dpkg --list
and you will obtain a complete list of software and a very short summary for each package.

Prey: a multiplatform, open source anti-thefth free software for laptops October 18, 2010
Posted by galigio in Computers & Internet, GNU/Linux, Linux, Linux & OpenSource, Mac OS X, multiplatform freeware, Multiplatform software, open source, open source software, security, Tech, Technology, Technology and Software, Technology News, Tecnologia, Ubuntu, Ubuntu 10.04, Ubuntu 10.10, windows.Tags: Android, cross-platform, cross-platform freeware, geo-location, ip, laptop, Linux, Mac OS X, multi-platform freeware, multiplatform, open source, Prey, protect, Software, tips, tips and tricks, Ubuntu, windows
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What about losing your laptop? Obviously the chances to find it and have it back are very few! But there are several software you can install on your laptop to trace the ip and geo-location of te laptop and with a bit of fortune you could find it. Prey is one of these programs you can use and it is particularly interesting because it is open source and free up to three laptops. After the download of the proper version for your OS (Linux, Windows, Mac OS X or Android) you have to run it on your machine and configure it through a very simple interface (on Ubuntu: Applications —> System Tools —> Prey Configurator). Do not forget to select Enable guest account and Wifi autoconnect to improve the possibilities to trace your laptop. You are also asked to provide an email account where you will receive the geo-location reports if your laptop is stolen. When you activate your Prey account do not forget to fill in the Configuration and Modules tabs. Personally we suggest to switch to ON the following commands: Auto update, Notify new reports and all the commands contained in the left column of the Modules tab. At this point, if your laptop is missed, you have to log in your on-line Prey account and, in the Configuration tab, switch the Missing option on YES. Since this moment, Prey software on your laptop is activated and will start sending reports to your email and to your Prey webpage. Last but not least, to better protect your laptop I suggest to hide or cancel the Prey Configurator icon from the OS menu (in Ubuntu: System —> Preferences —> Main Menu —> System Tools and deselect Prey Configurator).

In the last days, I tested
Hoy os quiero hablar de un aplicación disponible en 3 diferentes formatos. se llama 



















