Ubuntu: The Linux system for everyone

Whether a home PC, work laptop, or website server – without an operating system, the management of hardware resources wouldn’t be possible. Windows systems have proven themselves over the years, and Apple computers run with Mac OS X as the standard, but Linux distributions are no longer a niche in the server environment. Ubuntu, for example, continues to build on traditional open source [...]   

A comparison of different servers

Carry out a server comparison and you will notice that website operators have a large selection to choose from. Professional hosts offer virtual, dedicated, and cloud based servers in different performance levels. How do these server models differ from one another? What features does a root server have in comparison to a managed server? Which type of hosting is best for your web project? Take a [...]   

Apache Hadoop: the framework for Big Data

Are you looking to execute complicated computing processes with large amounts of data? This is exactly what the Big Data framework, Hadoop, focuses on. The open source Apache software offers a Java based frame with which various Big Data applications on computer clusters can be parallelized. Hadoop’s modular expandability, which offers users an enormous range of functions, is a particularly [...]   

iptables tutorial – rule sets for creating data packets

Since the first version, Linux kernel has been implementing packet filter modules, with which filter tables can be created. However, additional programs such as iptables are required to configure the rule set. In our tutorial, we present the free software for the Linux kernel 2.4 and 2.6 and give you a little insight into how it all works.   

Linux editor: effective code editing with Vim

In order to edit text files or receive source codes from software or websites, you require a text editor. Whether you’re using Linux, Windows, or Mac: the majority of operating systems these days already have them installed by default. There are also editors like Vim, which have a wider range of functions and simplify working with the confusing lines of code.   

htop – the task manager for Linux, Mac OS X and BSD

Process managers can give experienced computer users and administrators an accurate overview of which programs and services are taking up the system’s capacity. Classic command-line tools are confusing, and can only be controlled with complicated commands. For Unix-like systems, such as Ubuntu, the task manager htop, with its text interface, is a first-class alternative. It can help inexperienced [...]   

XAMPP tutorial: create your own local test server

The software packet XAMPP is a collection of popular applications like the web server Apache, a leading database management system (either MySQL or MariaDB), the scripting languages PHP and Perl, and more – all together in a compact test server. Our XAMPP tutorial will take you through the installation and configuration process, with the aid of clear instructions and screenshots, to help you set [...]   

Allocating directory rights with chmod

With Linux, access rights for directories and files are often set through the terminal. There, file owners can be defined and groups can be assigned. With the command, chmod, user classes can be assigned certain file rights. Access rights in the Unix file system can be changed in two different ways: symbolic or numeric. Find out more about both notation types here.   

Introduction to netstat

Various computer networks are connected with one another via the internet. In order to build up such connections, both the sending as well as the receiving systems have to provide transfer interfaces, or ports. The command line program netstat allows you to find out which ports are opened by your own system and which active connections exist — all of this helps reduce the risk of undesired access [...]