Riccardo | Linuxaria

Explore large files with Rowscope

Jan 232012

Sometimes it happen that: for mistakes, because you don’t rotate your logs or perhaps they growth up really quickly, that you need to analyse a large file (> 1GB) for searching a specific pattern of text. Probably you’ll go nowhere if you try to open them with vi or worst with a graphical editor like Gedit or libreoffice, and if your resource are low you risk to use all the memory and put your linux box in hang.

But don’t worry, like many things in Unix/Linux, there is a specific tool that can help you in this operation: Rowscope
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Introduction to AppArmor

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Jan 212012

If you use Ubuntu or Suse you probably already have Apparmor installed on your system, so take a moment and see how this software can help you.
And also if you don’t use these distributions, this article can be interesting if you are interested at the security of your Linux Box.

AppArmor (“Application Armor”) is a security module for the Linux kernel, released under the GNU General Public License. AppArmor allows the system administrator to associate with each program a security profile that restricts the capabilities of that program. It supplements the traditional Unix discretionary access control (DAC) model by providing mandatory access control (MAC).

It was included as of the 2.6.36 version of the mainline Linux kernel. Since 2009, Canonical contributes to the ongoing AppArmor development.
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Manage your bandwidth with Trickle

Articles, Guides 1 Response »

Jan 182012

Sometimes it’s useful to limit the bandwidth used by some of your programs, perhaps you want to limit your Browser or FTP client, and they dont’ have a native way to limit the input and/or output bandwidth they are using, there is a small application that can solve this problem for you: Trickle

trickle is a portable lightweight userspace bandwidth shaper. It can run in collaborative mode (together with trickled) or in stand alone mode.

trickle works by taking advantage of the unix loader preloading. Essentially it provides, to the application, a new version of the functionality that is required to send and receive data through sockets. It then limits traffic based on delaying the sending and receiving of data over a socket. trickle runs entirely in userspace and does not require root privileges.

Linux Games: No Gravity

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Jan 172012

No Gravity (classic) is a space arcade game with 5 game modes and it has very nice graphics, it is inspired by Wing Commander, a famous game of a few years ago that made history for the space shooter.

No Gravity runs on Windows, MacOS X, Linux, Amiga OS4, BeOS. It’s an arcade type game with great playability, where it is easy to plunge into space battles against spacefighters, space stations and more !
As always in these games there are missions to do and limited time to do them.
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Open source writing tools

Articles, Opinion, Reviews 2 Responses »

Jan 142012

Image via Wikipedia

There has been an impressive change in tools and techniques which writers can use for the good. It is easy to locate one (or more) for individual needs. Whether it is writing a novel, graphics applications or tutorials, these writing tools can serve multipurpose. Writing skills can gain unmatched dimensions on integrating with these advanced techniques. Your love for writing can potentially experience a boost by adapting with the modern applications. You can search one and get many on the internet.

Some of the potentially able writing tools have been summarized here.

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