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Keystore management in Linux

Jan 132011

Many Java application server use a keystore as a repository of their certificates and in general all Java applications use the one supplied with the JDK itself, Let’s see what is it and how to work with it.

A keystore is a repository of security certificates, that can hold your keys and certificates and encrypt them all with a password. In other words, a keystore is just like a hashtable which has an alias that identifies a certificate and then the certificate itself.

The Java JDK maintains a CAC keystore in jre/lib/security/cacerts. JDKs provide a tool keytool to manipulate the keystore.

Another way to manage this kind of certificate is Portecle a graphical tool that can help in these operation.

Arduino The Documentary

Articles, Pills No Responses »

Jan 112011

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.

Mono it’s good or bad for Linux ?

Articles 25 Responses »

Jan 092011

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.

The best way to move data

Articles, Guides 4 Responses »

Jan 082011

Or 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.
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2011 Calendar Linux Style

Articles, News 3 Responses »

Jan 072011

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.
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