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The Coming HTML 5 Revolution in Linux

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I have spent the last couple of weeks working on a very ambitious C++ program. The program is a software model of a mechanical engineering system. I have never undertaken a more challenging or more rewarding computer programming project. As I spent hour after hour poring over the code, I began to realize why everyone is making such a fuss about HTML 5. read more...
permapage | score:9509 | -aweber, December 13, 2011

Tutorial: Install Tomcat 7 on Ubuntu 11.04

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A step-by-step tutorial outlining how to install Tomcat 7 on the Ubuntu 11.04 server.
Apache Tomcat uses the Java Servlet and JavaServer Pages technologies. Java Servlet uses Java to extend the functionality of a web server. JavaServer Pages (JSP) provides a fast way to create a dynamic website.Tomcat 7

Because tomcat is written in Java you will need to have an up to date Java runtime installed before you can actually run tomcat.
read more...
permapage | score:9409 | -aweber, August 5, 2011

Using Git for Source Control

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GIT is the source control tool, a distributed version control system (dvcs) which is written in C. This provides a history of the files that are maintained by it. In distributed version control each user has a complete copy of the code so there is no central code repository. In this scenario an administrator makes changes, adds them to the index (called staging) and then adds them to the repository (called commit). Git will take this information and maintain a version history that users can track. This is all performed locally but could be synchronized with a remote repository. read more...
mail this link | permapage | score:9392 | -aweber, May 5, 2012

Basic nginx Configuration

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nginx is a powerful and modern HTTP server. It is perhaps most commonly used as a reverse proxy, also known as a load balancer or front end proxy. It follows the UNIX philosophy of doing one thing, and doing it well, and as such, it relies on several helper daemons to become a full-featured web server such as Apache. For example, to serve PHP, it relies on php-fpm to do the processing, while nginx itself handles the caching and speaking the HTTP protocol itself. In this article, we will talk about common configuration options, and how they relate to it's performance. We'll also discuss some basic administrative tasks. read more...
mail this link | permapage | score:9307 | -aweber, July 25, 2013

Tutorial: PostfixAdmin and Fetchmail

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Have you ever wanted to move mail from an old account to a new account? This tutorial will show you how to use fetchmail with PostfixAdmin. read more...
permapage | score:9282 | -aweber, September 3, 2010

Pissed Off Penguins: A Free Game Project

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Kris Occhipinti is currently in the middle of creating a 2D game using the Blender 3D game engine. The game, called Pissed Off Penguins, looks similar to the popular “Angry Birds” game most of you have likely heard about. I wanted to outline this open-source project and expose some of the unique techniques Kris is using to both fund this project and create the game itself. read more...
permapage | score:9265 | -aweber, December 11, 2011

Book Review: FreeBSD Device Drivers by Joseph Kong

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The Introduction says the goal of the book is “to help you improve your understanding of device drivers under FreeBSD”. OK, that is exactly what I wanted to do as I am currently working on several projects that use FreeBSD at deeper levels of understanding. read more...
permapage | score:9162 | -aweber, May 1, 2012

Installing NRPE on FreeBSD 9.0

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The NRPE daemon provides a way for Nagios to monitor the internal aspects of a FreeBSD box. This article will take you through the steps for installing NRPE on FreeBSD. read more...
permapage | score:9147 | -aweber, March 17, 2012

Debugging Shell Scripts

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Learning how to find the errors in your shell scripts is an important skill for successful shell scripting. The debug options in the Bash shell can help with that. read more...
permapage | score:9104 | -aweber, February 2, 2012

Unix signals list

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Processes are required to respond to signals sent to them. This is one way a user can communicate with signals and control them.
Signals are asynchronous events that can occur to a running process and may be caused by hardware, software or users. Signals are numeric integer messages that have been predefined so they understand what these signals mean. When a process receives a signal, that process must respond to the signal. Uncaught signals will cause default actions to take place, which often means the process is terminated. If you use “kill -l”, or “trap -l” you can get a list of available signals:
read more...
mail this link | permapage | score:9076 | -aweber, December 31, 2010

The Debate OS Project

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Today I ran across another open-source Kickstarter project that I thought was worth sharing. The project, called Debate OS, is an Ubuntu spin focused on providing a debate environment for high school and college students. read more...
permapage | score:9069 | -aweber, December 15, 2011

Configure iSCSI and iSNS Servers

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In previous tutorials we've learned SUSE has made life very easy for System Administrators having developed graphical tools to manage many system components including the iSCSI target. As with most things in life there is a price to pay for this ease: YaST only writes to the configuration files and the changes do not come into force until the service is restarted. Command Line knowledge lifts us out of troublesome pit and gives us full control of our systems. Additionally we will add in ISNS (Internet Storage Name Service) to locate ISCSI Targets on our network. read more...
mail this link | permapage | score:9006 | -aweber, July 27, 2011

Getting Help with Ubuntu 12.04 LTS

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This coming Thursday marks the release of Ubuntu 12.04 LTS Precise Pangolin. Many users will download Ubuntu, try it and give up because of some small technical problem. Here is a list of tutorials and resources for Ubuntu beginners that I have found to be useful. read more...
permapage | score:8841 | -aweber, April 25, 2012

String matching in regular expressions

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Use parentheses to create the string matches you need in regular expressions. Parentheses allows you to use pipes for multiple matches. read more...
permapage | score:8828 | -aweber, September 12, 2011

Ubuntu 10.10 Software Center

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The basic tutorial and step-by-step video of the Ubuntu 10.10 Software Center and how to use it. How to install, remove, and check software history on the latest version Ubuntu 10.10. read more...
permapage | score:8825 | -aweber, November 1, 2010

Bash log file scanning

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The idea behind a log parser is to create a loop that will check all of your required logs to return information about specific needs that you may have as an administrator. For example, with this script you may want to search a specific log for one or two text strings that are very important to the function of your system. read more...
permapage | score:8789 | -aweber, March 3, 2011

CentOS 6 Minimal Desktop Install

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This example of a minimal desktop shows how to manually create partitions using ext3 and ext4 for a server that has a minimal desktop for a graphical interface.
Create a / partition with the ext4 file system. The size of this partition should be at least 6 GB for a minimal install. One aspect to think about, if you are using the standard partitions you will not be able to resize these later as you would if you were using LVM. 10 GB is a safe choice for a server if you are creating a separate /usr partition.
read more...
mail this link | permapage | score:8751 | -aweber, December 20, 2011

13 Regex Features

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Regular expressions provide a robust set of features in the Bash Shell. This article lists 13 features you need to know about regex. read more...
permapage | score:8731 | -aweber, November 18, 2010

Understanding SELinux

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A task of any operating system is to provide software that strongly increases its security. A lot of programs of this type have been created; some are better than others. read more...
permapage | score:8723 | -aweber, March 25, 2013

Book Review: Ubuntu Made Easy

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The task this book sets out to do is impossible and many who purchase the book will expect a great deal more. Everyone wants a one volume answer guide to the Ubuntu Desktop, it simply is not possible. The goal of the current book, is to provide “jumping-off point to get started.” read more...
permapage | score:8704 | -aweber, September 11, 2012
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