Linux

Gnome Shell

Unity or Gnome Shell?

This is a guest post written by David Gómez from the world according to Linux. Yesterday Ubuntu 11.04 Natty was released ...

IBAM with Gnuplot

Know the battery status from the terminal

One of the things that most worries all of us who work on a laptop is that we have so much battery left before the laptop shuts down and our productivity suddenly ends. That is why we keep a watchful eye on the application that brings our desktop environment where we can see an unrealistic report about how much time we have left on battery. I say unrealistic because always 30 minutes of battery life is about 10 minutes, and more if in those assumptions 30 minutes gave you to do something that consumes many resources of your machine.

Apart from giving us wrong data, these mini applications border on simplicity, offering us practically no additional information, something that personally bothers me, because I like to know how my battery really is, not just how many fake minutes I have left.

Linux USB Drive

Disable the use of USB disks for a user in Linux

Linux USB DriveOne of the most common security problems in a company is the leakage of information, this is generally given by unrestricted access to the use of mass storage devices such as memory sticks and USB drives, burners. CD / DVD, Internet, etc

This time, I am going to show you how we can restrict a user's access to USB mass storage devices in Linux, so that access to the port is not lost in case of having to connect a mouse USB or charge a battery through it.

Note: all types of USB mass storage device will be disabled, including music players, cameras, etc.

Ubuntu Tweak - Menu

Change GDM wallpaper in Ubuntu

Ubuntu has that ugly wallpaper that you use (I mean purple) as default wallpaper for GDM, but the truth is that I don't even like to see it in that short moment when I log into my laptop.
That is why we are going to learn two ways to change this background for one that we like more or that is more in line with the wallpaper we use on the desktop.

First of all, we must understand that Ubuntu handles the appearance of the GDM with themes, so normally it is not possible to change the appearance of this without changing the whole theme, but the theme ambience It is quite beautiful and I do not think, as I do, that they want to change it.
This theme uses the default background image /usr/share/backgrounds/warty-final-ubuntu.png, which is the image that we see as the default background in Ubuntu (yeah, that hideous purple).

WDT, an impressive tool for web developers

Linux It does not have many applications that help a lot when developing web pages, and by this I mean applications that provide tools that help save time when writing code, since almost all of those that exist normally only offer options for debugging and writing code, rather than offering an environment WYSIWYG.

Fortunately there is WDT (Web Developer Tools), a powerful application that allows us to quickly and easily generate styles and buttons in CSS3, charts using Google API, check email from gmail, translate text with Google translate, make vector drawings, database backups and a very long (very long seriously) etc.

How to add PPA repositories to Debian and distributions based on it

One of the great advantages that Ubuntu has over other distributions is the large number of applications available for this distribution and the ease of installing and keeping them updated through PPA repositories through Launchpad.

Unfortunately the command add-apt-repository It is only available for Ubuntu, so adding these repositories is not so easy when you want to add it in a distribution like Debian or based on this you can generally make use of the .deb packages created for Ubuntu.

This is not to say that we cannot make use of these repositories in Debian, since Debian also provides a way to add custom repositories, and then we are going to learn how to do it.

How to fix Atheros WiFi problem on Ubuntu Maverick

How to fix Atheros WiFi problem on Ubuntu Maverick

This is not a new problem, since Ubuntu 10.04 Lucid Lynx, Canonical you have trouble getting multiple brand-name wireless network cards to work properly Atheros.

As for Lucid Lynx, this problem is solvable, commented on the blacklist made to the Atheros driver in the configuration file /etc/modprobe.d/blacklist-ath_pci.conf and installing the linux-backports-modules as described in this NetStorming entry.

Unfortunately, this solution does not apply to 10.10 Ubuntu Maverick Meerkat, since applying this solution only leads to the complete disappearance of the WiFi network and if you keep insisting you will be left without a system as happened to me. 😀

How to compile Kernel 2.6.36.2 in Ubuntu with the 200-line patch included

How to compile Kernel 2.6.36.2 in Ubuntu with the 200-line patch

Many of you seem to have had a problem installing the Kernel precompiled with the 200 line patch on your machines, this is to be expected, so it is always better to have a Kernel directly compiled in our machine than in a foreign machine, so that it correctly takes the architecture of our machine and the general configuration of the hardware.

For this reason, here I teach the most daring, how to compile their own Kernel (2.6.36.2) in Ubuntu (tested in Ubuntu 10.10) with the 200-line patch included in it. Remember that this process should be done at your own risk, it requires a large number of packages to download and a fairly high compilation time.

Install Ralink RT3090 on Ubuntu

Introduction

Let's imagine the following situation, you buy a Laptop and Install Ubuntu and It Doesn't Detect the Wireless or Wifi Network, or even worse the Lan or Cable network is also not Detected, this is because those chips use proprietary drivers and are not included in the ubuntu kernel, therefore you have to install them as an extra, according to my experience the MSI laptops have this rt3090 chip.

Install your own Jabber server with OpenFire on Ubuntu Linux

to create your own instant messaging system, with jabber (the same from google talk),
OpenFire is a web-managed jabber server (like a router or modem), written in java and is GPL.
for it to work you have to have Apache2 + MySQL + PHP5 installed and phpmyadmin doesn't hurt
To Install Apache2 + MySQL + PHP5 + phpmyadmin:

Linux for computer scientists?

Interesting article seen on meneame Allow me to introduce myself: a non-computer woman about to become a septuagenarian (heck, how ...

Don't hit me, I'm Ubuntu!

Reading Ubuntu Life, I find this article, originally published in Operative Systemz Comics, with which I agree in the major ...

Conky, My setup

Fecfactor asked me yesterday to publish the configuration of the conky that I show in the screenshot below. How can you ...