Linuxaria - Tutto su GNU/Linux ed Open source

Cryptography and digital sign with GnuPG 2

Oct 292010

In the previous article we presented some basic concepts of encryption and made some examples of symmetrical and asymmetrical keys, we concluded by saying that a good way to get a certificate with an asymmetric key is GnuPG.

GnuPG is open-source and multiplatform. It uses native command line in a shell or from MS-DOS prompt.

There are also graphical interface:

Enigmail it’s an extension for Mozilla thunderbird. And contains a graphical tool for keys management.

Cryptography and digital sign with GnuPG

Guides 1 Response »

Oct 262010

Or email safely

Original article by Maurizio Antonelli

As well as documentation for those interested, I sincerely hope that it can raise awareness of the non-security of “electronic mail” and help users to take the appropriate implementation tools.

Let’s start with this basic idea: “Email is not a secure media for transmitting information.”

In fact, almost all e-mail when traveling in the network are in clear text, without any form of encryption. As you know, an e-mail message, from the time he leave the sender PC since it arrive to the destination PC, it’s crossing different networked machines, each of which deals with “forward” it in the right direction. Whoever is at the controls of any of these machines can then view (sniff) this message, at great risk to the privacy of the sender and recipient.

It’s possible to integrate Thunderbird and Orage ?

Guides No Responses »

Oct 242010

Original article by: Francesco Di Leo

I found this article by francesco very interesting, because at work I use Thunderbird with lighting extension, while at home I use my trusted Xubuntu (with integrated Orage), so thanks to his article I saw how to integrate the two objects.

But what are Lighting and Orage ?

Lightning brings the Sunbird calendar to the popular email client, Mozilla Thunderbird. Since it’s an extension, Lightning is tightly integrated with Thunderbird, allowing it to easily perform email-related calendaring tasks.

Orage provides a calendar which integrates nicely into the Xfce Desktop Environment. It is highly configurable and supports alerts based on dates. It warns you with popup or audio alarm. As it is an application for every day use it launches itself in the background as a daemon and can be accessed using the Orage Clock plugin for the panel. Continue reading »

Globbing with zsh

Guides No Responses »

Oct 232010

In a previous article we saw how to install and configure zsh, today we’ll see in detail the options offered by the zsh for globbing or how the shell use some special characters to auto-complete our commands.

Please note: most command you’ll see here could be accomplished with particular switch of the command, for example ls with -r do a recursive search, but the goal of this article is to just use the shell, so our goal will be to accomplish the same result but just with the power of zsh globbing.

Wiimote on Gnu/Linux

Articles No Responses »

Oct 232010

This article is based on the slide of Daniele Napolitano, and on his presentation on Linux Day 2009.

The Wiimote is a revolutionary game controllers created by Nintendo for its Wii console and changed the concept of making the game player at the center of the physical interactions of the video game.

While in the normal game controller maximum interaction with the game were the buttons and force feedback, we have motion and aiming sensors in the Wiimote, so the console “know” what they are doing and where is the player in relation to the TV.

So it is:

For the player: a game controller

For the geeks: a concentration of technology

Page 149 of 161 Newer Entries 1 2 … 147 148 149 150 151 … 160 161 Older Entries