Linux

Hosts File

What is the hosts file and how do you edit it?

The hosts file used to resolve website names so that certain IP addresses could be accessed. The method was largely replaced by the DNS (domain name system). However, the hosts file is still indispensable for local networks. In addition, certain rules can be set for websites e.g. to block them. We show you where you can find and edit the hosts file in your operating system.

Linux editor: effective code editing with Vim

Linux editor with a vast range of functions – 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.

Solr

Solr: the powerful search platform from Apache

What exactly is Solr? The answer to this question lies in our article. In combination with the Java library, Lucene, Solr can be used to build powerful web search engines. Do you need to index your documents? Solr will take care of this. First, we explain the basic terms of practical open source software and its functions. In our Solr tutorial, we’ll explain how to set up the search platform. In...

Apache Hadoop: the framework for Big Data

Apache Hadoop: distributed storage architecture for data quantities

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 parallelised. Hadoop’s modular expandability, which offers users an enormous range of functions, is a particularly...

Introduction to netstat

What is 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. 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 attempts.

RabbitMQ

RabbitMQ: Quick message sending

There are many situations that require applications to communicate with each other in a quick and controlled way. RabbitMQ works as an intermediary between two services, and ensures a smooth distribution of messages. The two programs could even speak differing coding languages: this is not a problem for the message broker.

Linux commands: An overview of terminal commands

An overview of the most important Linux commands

Under Linux, all actions that you can carry out with the mouse and window system via the graphical user interface can also be performed using programme calls in the terminal – provided you know the appropriate command and how to use it according to the correct syntax. To make working in the terminal easier, we provide you with an overview of basic Linux commands with detailed descriptions and...

LAMP servers – the solution for dynamic websites

LAMP Servers: an affordable solution for dynamic websites

If independently installing the software package for your hosting project is your goal, then you might consider choosing one of the many free components out there. Sooner or later you are bound to encounter the widely used and very popular LAMP stack software bundle. But what exactly makes this package so attractive in comparison to alternative options?

Traceroute: your digital pathfinder for data packages

What is Traceroute (tracert)?

Whether at home or at your business: network issues can really grind one’s gears. When ensuring that all the cables have been connected and the settings have been checked multiple times is of no help, it may be time to make use of traceroute or tracert. These help users find the source of all their frustration.

Linux vs Windows – the big server check

Linux vs. Windows: a comparison of the best web server solutions

The duel between Linux and Windows may have an obvious victor on the home computer front, but the battle for server use paints a very different picture: since the beginning, Linux has defeated Windows, as usage figures show. But many users remain unconvinced by statistics and rightfully ask the question: what are the actual differences between the two platforms?