Tools

nslookup

nslookup: Here’s how the useful DNS check works

Those who want to access computer systems and applications in networks need host (or rather, domain) names. As long as the Domain Name System, which is responsible for the name conversions, is functioning normally, users remain unaware that machine-readable IP addresses are hidden behind these names. However, if complications with the DNS and the involved name servers arise, they can be quickly...

Converting ACSM files

Opening and converting ACSM files

Sellers of e-books and other electronic publications face the same problem as the creators and copyright owners of films, music and software – because the content is digital, it is easy to reproduce and redistribute. To prevent this, commercial ePUBs, PDFs and other files are copy-protected, for example using Adobe Digital Rights Management (DRM). This is where ACSM files come into play.

Raspberry Pi alternatives: Single board computers to check out

Four current Raspberry Pi alternatives: Single board computers by comparison

Raspberry Pi is the first choice for do-it-yourselfers around the world when it comes to single-board computers: It’s small, cheap, and meets most server and media center requirements. But more and more manufacturers are putting their own mini-computers on the market: Raspberry Pi alternatives want to set themselves apart with lower prices, more powerful hardware, or edgy and exceptional features....

How to install an Apache web server

Installing and configuring an Apache web server

The Apache http server is the standard web server for providing HTTP documents on the internet. But did you know it’s also possible to install an apache web server locally on your Windows PC? This is a great method of testing out web pages and checking scripts. To get started, all you need is the free software package and a few minutes.

Buying Office 365 online

Buying Microsoft 365 online: Microsoft 365 – part one

Microsoft 365 is Microsoft’s way of offering its beloved productivity software in the cloud. Users can benefit from numerous functions that enable central data storage and collaborative editing of documents, presentations, spreadsheets, and more. When it comes to buying Microsoft 365, you’ll need a subscription – instead of a one-off payment like the traditional desktop installation of Office,...

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.

Free alternatives to Adobe InDesign

Free Adobe InDesign alternatives

For creatives and those who are aspiring designers, many programs from Adobe make up a key part of their standard equipment. InDesign is a very popular tool with large publishing houses as well as smaller publishers thanks to its huge range of functions. But quality (and name) come at a price: monthly fees put a hole in the cash register, especially for small companies and self-employed designers....

Class diagrams with UML

Creating class diagrams with UML

Class diagrams are structural diagrams in the UML modeling language. The UML class diagram is suitable for visualizing system elements and their dependencies for object-oriented programming languages. If you are a modeler creating a class diagram, it is advantageous to adhere to the official notation and semantics. This is the only way to avoid misunderstandings. We will explain notation for the...

Google Data Studio for visual data analyses

Google Data Studio: setting the scene with your data

Data analysis is a purely theoretical matter for most people. But in order to provide the customer with information, it’s important to be able to visualize sets of data. With Google Data Studio, you can summarize data from different sources into one handy report. Our guide gives you an overview of Google’s latest offering.


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