This article explains how you can improve the performance of I/O-intensive Java applications running on Linux and UNIX platforms through a technique called zero copy. Zero copy lets you avoid redundant data copies between intermediate buffers and reduces the number of context switches between user space and kernel space.

Recently while using the searchable plugin with Grails I've had exceptions citing too many open files. Linux systems typically limit resources on a per-user basis by various criteria such as number of processes and number of open files.

AWK is a very powerful programming language that we can use on the command-line for advanced text processing. I'd like to provide a guide so you can get started using it. I'll be covering the basics of AWK and provide some useful examples

How to run Linux/Unix commands in Windows?

In an interesting post on Lifehacker, the editors ask the readers "Why did you switch to Linux?" The question drew quite a lot of interesting responses, including some very offbeat reasons for why people made the switch. If you're under the impression that people switch solely for rebellious or "fight the man" reasons, here are some of the more interesting responses and trends that they point to.

an articale disscuss reasons makes linux can not win against windows in the computer world

When it comes to desktop virtualization, the choices are usually VMware Workstation on Windows, or VMware Fusion / Parallels on the Mac (and a myriad of options on *nix, like VMware, qemu, bochs, etc).

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According to this google trends analysis Redhat, Centos and Fedora make up the majority of linux distributions used in production. All these have a broken perl. How much time and money has been lost because of this? I have a sinking feeling that it is a staggering number.

In the last days I tried to install and configure a Glassfish and a Liferay cluster for a client. From what I see in Internet is a lot of "old" documentation for Glassfish / Liferay clustering and nothing related to latest versions of Glasfish / Liferay (glassfish v2ur2 and Liferay 5.1.1), and I know this documentation also will become old in some months :) . So I intend to write (as best as I can) a very simple documentation about how I manage this to work and what problems I found trying to do this.

When Linux crashes, users don't get a Blue Screen like they do on Windows. Instead, Linux generates an "oops" -- a crash signature that can help developers to figure out what went wrong. The feature may have a silly name, but it's increasingly serious business.

Collection of tips, pointers to free tutorials, and advice on the best applications including screenshot-driven guided tours to how to use top tier OSS applications, pointers to free tutorials on everything from AJAX to OpenOffice, and guidance on finding free open source webinars on topics such as MySQL and Ubuntu. Here are 12 of our most popular educational roundup posts.

If you're going to have long relations with Linux operating system and use it as efficiently as possible I suggest to read the following how-tos and guides that will help you on the way to advanced Linux user status. Topics include Bash-Scripting, Command-Line Tools, System Administration, Routing & Traffic Control, Iptables, Filesystem Hierarchy, and Security.

You may know that if you were to include your ssh public key in the remote host's authorized_keys file, you can ssh/scp into that remote machine without password login. This will enable administrator to program script to run without having to interactive with it.

LAMP (Linux, Apache, MySQL and PHP) servers are very popular for their ease of use and flexibility. Read on to find some of the best resources available for creating your own home LAMP server, from installation to maintenance.

Trying to avoid VNC+SSH on Linux but need a remote-desktop solution? Try out the free version of NXServer, here's a 5min guide on how to get it setup and running on Ubuntu and Mac.

So the bloggers over at ZDNet have once again proclaimed the end of the operating system. Larry Dignan says: The operating system may be losing its luster. In fact, you could argue that the operating system–Linux, OS X and Windows–will become an application that just happens to boot first. And hardware vendors are on to the OS’s diminishing importance.

This article will explan how to crack 64bit and 128bit WEP on many WIFI access points and routers using Backtrack, a live linux distribution. Your mileage may very. The basic theory is that we want to connect to an Access Point using WEP Encryption, but we do not know the key.

If you’re not already familiar with BitNami, the aim of the project is to help spread the adoption of open source software by making it easier than ever to install and configure. Whether you’re an experienced techie or a total newbie, you’ll be able to get open source applications installed in just minutes with our easy to use installers. Still not convinced? Read on for 5 reasons BitNami will make your life easier.

Linux myths debunked... by Ubuntu I think.

What does the future hold for Linux development at Red Hat? A look at some of the new features coming in the Fedora 10 Linux distribution release might yield some clues. Currently in early development with a feature freeze scheduled for the end of August, Fedora 10 includes a host of improvements that aim to improve audio, packaging, networking and security features.

Next version of git 1.6

Ever since I read Jeremy Allison’s blog post about why we need to hear criticisms from people who dislikes Linux, I have been thinking a lot about what he said and how it hits very close to my own philosophy about life: In order to improve, you need to be open to criticisms; even from your enemies.

Linus Torvalds, creator of the Linux kernel, says he's fed up with what he sees as a "security circus" surrounding software vulnerabilities and how they're hyped by security people.

If you've got a few servers you are responsible for, check out these tips to keep yourself from accidentally causing problems. Good stuff!