Ubuntu is composed of many software packages, the vast majority of which are distributed under a free software license. The only exceptions are some proprietary hardware drivers.The main license used is the GNU General Public License (GNU GPL) which, along with the GNU Lesser General Public License (GNU LGPL), explicitly declares that users are free to run, copy, distribute, study, change, develop and improve the software. On the other hand, there is also proprietary software available that can run on Ubuntu. Ubuntu focuses on usability, security and stability. The Ubiquity installer allows Ubuntu to be installed to the hard disk from within the Live CD environment, without the need for restarting the computer prior to installation. Ubuntu also emphasizes accessibility and internationalization to reach as many people as possible.

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rApache Web Application Development with R and Apache: Handler Return Values and HTTP Response Codes (Chapter V).

Saturday, July 19, 2014

It is a list of lists, with the nested list giving you the "name" of the file and the "tmp_name", the location of the temporary file. For instance, to reference the uploaded file from the input tag named "FirstFile" you would use FILES$FirstFile$tmp_name. Here's a code snippet to copy the file to the '/usr/local/uploaded_files' directory:


destination <- file.path('/usr/local/uploaded_files',FILES$FirstFile$name)


NOTE: the temporary files are deleted after the R handler completes handling the request. Thus, it is imperative that you copy/move this file to your desired location before the R handler returns.


rApache Web Application Development with R and Apache: Difference in r-handler and r-script (Chapter IV).

The latest Apache2 debian packages cause the web server to run in a very reduced environment, thus one is unable to set LD_LIBRARY_PATH before calling /etc/init.d/apache2. One option is to actually edit that file and add the LD_LIBRARY_PATH explicitly. Another is to use the apache2ctl scripts which are also bundled with the debian packages. Or you can add it to /etc/ld.so.conf.

4.6 sendBin.

Sends binary data to the browser. This function is equivalent to R's writeBin() function, but the connection argument is ignored. See the documentation to writeBin() in your R distribution for more information.




rApache Web Application Development with R and Apache: Difference in r-handler and r-script (Chapter III).

Rapache is a simple tool for remotely managing and configuring an apache2 server.

If you need a simpler software just to start/stop apache2 and mysql, check localhost-indicator.


3.6.2 Difference in r-handler and r-script.

r-handler, r-script, and r-info are valid arguments to Apache's SetHandler directive ("r-info" is already described in section 2.3). Calling SetHandler forces url's to be parsed through the named handler.


r-handler is used when you want to call an R function without arguments. You can also specify a particular file as well (see below). It is generally used within Location directives.


Currently we don't have a dedicated website.



rApache Web Application Development with R and Apache: Quick Install For Debia/Ubuntu (Chapter II).

Rapache is a simple tool for remotely managing and configuring an apache2 instance without having to hassle around through configuration files.


Rapache is a python + GTK tool that allows you to configure apache2 and all of its modules.

GPL'd, Its goal is to provide the user with a simple interface to facilitate the work to those who want to set up a web-server in a few clicks.


Rapache has been fixes, so it finally works again. please use last trunk revision.


2.2 Running make.

Running make with no target will build rApache. Use 'make install' to install. The following make targets are also available:


    itest will run apache within a single process. You should see a message on the output to point your browser to http://localhost:8181/index.html where you can test out your rApache build before it is installed. In order to stop apache, either type Control-C or Control-\.


rApache Web Application Development with R and Apache: Introduction and Installation (Chapter I).

First presented at DSC2005, rApache is a project supporting web application development using the R statistical language and environment and the Apache web server.


The current release runs on UNIX/Linux and Mac OS X operating systems.

For some examples of interactive R web applications that use rApache, visit the website of Jeroen Ooms.


Download rApache 1.2.5


To follow the latest development on github.com, go here:




View the Changelog



SquirrelMail is a standards-based webmail package written in PHP.

Wednesday, July 16, 2014

SquirrelMail is a project that provides both a web-based email client and a proxy server for the IMAP protocol.


The webmail portion of the project was started by Nathan and Luke Ehresman in 1999 and is written in PHP.


SquirrelMail can be employed in conjunction with a LAMP "stack", and any other operating systems that support PHP are supported as well. The web server needs access to the IMAP server hosting the email and to an SMTP server to be able to send mails.


SquirrelMail webmail outputs valid HTML 4.0 for its presentation, making it compatible with a majority of current web browsers. SquirrelMail webmail uses a plugin architecture to accommodate additional features around the core application, and over 200 plugins are available on the SquirrelMail website


The SquirrelMail IMAP proxy server product was created in 2002 by Dave McMurtrie while at the University of Pittsburgh (where it was named "up-imapproxy", although it has become more commonly known as "imapproxy") and adopted by the SquirrelMail team in 2010.


DWB is a lightweight web browser based on the webkit web browser engine.

DWB is a lightweight web browser based on the webkit web browser engine and the gtk toolkit.


DWB is highly customizable and can be easily configured through a web interface. It intends to be mostly keyboard driven, inspired by firefox's vimperator plugin.



    vi-like shortcuts
    Link following via keyboard hints
    Cookie support, whitelisting of cookies
    Proxy support
    Userscript support
    Tab completion for history, bookmarks, userscripts
    Custom stylesheets
    Javascript blocker with whitelisting support
    Flash plugin blocker with whitelisting support
    Adblocking with filterlists
    Webinterface for keyboard and settings configuration
    Custom commands, binding commandsequences to shortcuts
    Extendable via extensions/scripts
    Extension manager


Quantum Mini is a small web browser designed to be used without any hassle.

Quantum Mini is a small web browser designed to be used without any hassle.


QM is regularly updated with new features being added everyday.


Quantum Mini Features: Easy Setup, Simple To Use, Combined Search and Address Bar, Regularly Updated, Takes Up Little Desktop Space and Loads More.


Available versions

quantum mini

Apollon The Ultimate File-Sharing App for Linux.

Apollon is a Peer-to-Peer File-Sharing Program written for Linux.


Apollon uses the giFT core to connect to various networks, including OpenFT, Gnutella, FastTrack


OpenFT is the homegrown giFT network, Gnutella is the network used by BearShare, LimeWire and others and FastTrack is the popular network used by KaZaA.


Apollon uses a plugin system which allows you to choose which network or multiple networks you wish to use. Finally, plugins for the OpenNap and SoulSeek networks are under development.





NetSurf is an open source web browser which has its own layout engine.

Tuesday, July 15, 2014

NetSurf is an open source web browser which has its own layout engine. It is designed to be lightweight and portable, supporting both mainstream systems (e.g. Mac OS X and Unix-like) and older or uncommon platforms (e.g. AmigaOS, Haiku and RISC OS). NetSurf has many typical web browser features, including tabbed browsing, bookmarks and page thumbnailing.


The NetSurf project was started in April 2002 in response to a discussion of the deficiencies of the RISC OS platform's existing web browsers. Shortly after the project's inception, development versions for RISC OS users were made available for download by the project's automated build system. NetSurf was voted "Best non-commercial software" four times in Drobe Launchpad's annual RISC OS awards between 2004 and 2008.


Boxes is an application of the GNOME DE, used to access remote or virtual systems.

Monday, July 14, 2014

Boxes, also known as GNOME Boxes is an application of the GNOME Desktop Environment, used to access remote or virtual systems.


History and functionality.

GNOME Boxes was initially introduced as beta software in GNOME 3.3 (development branch for 3.4) as of Dec 2011, and as a preview release in GNOME 3.4.


Its primary functions are as a virtual machine manager and remote filesystem browser, utilizing the libvirt, libvirt-glib, and libosinfo technologies.


This enables the viewing of remote systems and virtual machines on other computers in addition to locally-created virtual machines.


Boxes possesses the ability to easily create local virtual machines from a standard disk image file, such as an ISO image while requiring minimum user input.

Dynare is a software platform for handling a wide class of economic models.

Wednesday, July 9, 2014

Dynare is a software platform for handling a wide class of economic models, in particular dynamic stochastic general equilibrium (DSGE) and overlapping generations (OLG) models. The models solved by Dynare include those relying on the rational expectations hypothesis, wherein agents form their expectations about the future in a way consistent with the model.


But Dynare is also able to handle models where expectations are formed differently: on one extreme, models where agents perfectly anticipate the future; on the other extreme, models where agents have limited rationality or imperfect knowledge of the state of  the economy and, hence, form their expectations through a learning process.


In terms of types of agents, models solved  by Dynare can incorporate consumers, productive firms, governments, monetary authorities,  investors and financial intermediaries. Some degree of heterogeneity can be achieved by including several distinct classes of agents in each of the aforementioned agent categories.


GNU Dr. Geo, be a geometer! F.A.Q.

Monday, July 7, 2014


1.- At startup, Dr. Geo asks me to choose an image file, what is it?

It occurs when the direcotry's path Dr. Geo belongs to contains accented characters. Move Dr. Geo to a directory without accented characters in its path and try again (this problem was reported under Windows).


2.- Can I run it in my Linux 64 bits host?
Linux Dr. Geo is compiled for 32 bits host. To run it on your Linux 64 bits host, you need to install 32 bits compatibility package. This package will let you run any 32 bits compiled software on a 64 bits host. Depending on the distribution, the package to install may have different name.


3.- Debian, Ubuntu 12.04 LTS, Linux Mint


sudo apt-get install ia32-libs-multiarch

4.- Debian, Ubuntu 14.04 LTS, LinuxMint.


Plex Media Server on Ubuntu.

Plex organizes video, music and photos from personal media libraries and streams them to smart TVs, streaming boxes and mobile devices. It is a media player system and software suite consisting of many player applications for 10-foot user interfaces and an associated media server that organizes personal media stored on local devices.

Integrated Plex Channels provide users with access to a growing number of online content providers such as YouTube, Vimeo, TEDTalks, and CNN among others.[4] Plex also provides integration for cloud services including Dropbox, Box, Google Drive, Copy and Bitcasa.

Plex's front-end media player, Plex Home Theater (formerly Plex Media Center), allows the user to manage and play video, photos, music, and podcasts from a local or remote computer running Plex Media Server. In addition, the integrated Plex Online service provides the user with a growing list of community-driven plugins for online content including Hulu, Netflix, and CNN video.


June 2014: 10 Most Popular Posts from Ubuntuland & The Dream Valley.

Sunday, July 6, 2014

1.- Ladr4 is a library for use in constructing theorem provers.

Ladr4 is a library for use in constructing theorem provers.

Ladr (library for automated deduction research) is a library for use in constructing theorem provers.   Among other useful routines it provides facilities for applying inference rules such as resolution and paramodulation to clauses.   Ladr is used by the prover9 theorem prover, and by the mace4 countermodel generator.   Download. Ubuntu 13.04 “Raring Ringtail”: [ladr_

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