Jan 162011
 

tuxrayI had recently problems with servers running application server Java and suddenly began to see strange errors like “broken pipe” or exausted resources, this is often due to the high number of open files that a modern server can bind especially compared to the default Linux systems that is still standing at 1024.

Let’s see how many open files are present on our system and how to resolve, or better to prevent this problem.
Continue reading »

Flattr this!

Jan 112011
 

arduino
In the past I had made a leap into the world of open hardware, and i had wrote some about Arduino, one of the best projects in this field.

I’m interested because what happened in the world with open source software is beginning now in the hardware world, and the Arduino project is an excellent example of this.

But enough if you’re curious I suggest you go and watch this excellent documentary.

Continue reading »

Flattr this!

Jan 092011
 

mono As first thing i want to say that i’m not so well informed about the background of the Mono
project, his licenses model and possible implications, and I’m trying to get an idea after reading a few posts on techrights.org.

In fact I read on techrights very strong words against this project, and so I’m trying to understand something more.

But first: what is’ exactly the Mono project?

From mono site:

Mono is a software platform designed to allow developers to easily create cross platform applications. Sponsored by Novell (http://www.novell.com/), Mono is an open source implementation of Microsoft’s .NET Framework based on the ECMA standards for C# and the Common Language Runtime.

Continue reading »

Flattr this!

Jan 082011
 

tarOr scp VS tar+ssh VS rsync+ssh VS tar+netcat

In a previous article in which i’ve show some uses of tar, I made an example of how to use it to move large amounts of data between two computers, but many people have said that it is better, or at least they prefer to use rsync, others prefer to use netcat. I remain convinced that a tar+ssh is faster than rsync+ssh is correct then do a test on the field and see some numbers.
Continue reading »

Flattr this!

Jan 072011
 

calendar What better time to create your own calendar for 2011, even better if based on the Linux world ?.

I saw this idea on the site http://cursorlibre.com/ where they made a nice dodecahedron with a Ubuntu theme.

In the download package, there is a pdf version ready to print and assemble, plus a pdf version of a guide in which is explained what parts should be cut and how to bend the paper to obtain the dodecahedron.
Continue reading »

Flattr this!