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.
Optical installation media are yesterday’s news. A bootable USB drive is not only faster and more practical than a CD-ROM, it can also do a lot more: For example, create a portable operating system with which you can use Windows as well as Linux computers. The most important function, though, is the ability to boot and repair a PC following a serious system problem. To make such a bootable USB...
The infamous blue screen of death usually shows up without any warning. It’s an important indicator of internal problems with hardware, software, or drivers. If Windows can no longer be run as a result of such a problem, then the forced shutdown takes place in the form of a blue screen containing an error message. This may cause unsaved files and documents to be lost. The most important thing with...
‘DNS server not responding’ is a typical error response on Windows. Its presence indicates that some sort of problem is occurring with your internet connection. This phenomenon can be the result of many different causes. In addition to network problems, routers, Windows Firewall, and the web browser are also taken into account when troubleshooting.
A central program on every operating system is the file manager. Whether on Windows, Linux, or macOS – in order to perform file and directory operations conveniently and efficiently, you should rely on a file manager that meets all your requirements. The pre-installed programs like Windows Explorer, Apple’s Finder, or Nautilus on Ubuntu, on the other hand, come with a greatly reduced range of...
Are you a Windows user, but aren’t sure what version of the operating system you have installed on your PC? This article introduces three ways of checking your Windows version in just a few seconds: using a keyboard shortcut, via the Control Panel, or using the Windows Command Prompt (CMD).
There are different reasons for why you might want to rotate your computer screen. Some users rotate their screen to use it as an upright, vertical display. Others have done this by mistake. Luckily, Windows 7, 8, and 10 offer an easy fix for adjusting display settings. You might even be able to use shortcuts on your PC or laptop to rotate your screen.
Every Windows user knows: No matter which version you use, the popular Microsoft operating system has its bad days. Sometimes these are so serious that the worst possible outcome happens: Windows won't boot anymore. You might think there’s nothing you can do, but don't panic: Boot problems and bluescreens can be solved quickly in most cases.
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.
While most content management systems are based on the PHP scripting language, Alchemy CMS uses a less common but more dynamic programming language: Ruby. There are also countless add-ons available from Ruby on Rails that can help to extend your web framework to create complex projects like company websites or online shops. Find out what makes this intuitive CMS a good bet for beginners.