Open Source

Functional Specification

Functional specification: All project requirements at a glance

Have you heard of a functional specification before? Functional specifications and specification sheets are often used especially in the software sector. They are essential tools for completing projects on schedule. The functional specification is prepared by the contractor and essentially contains the client’s requirements. Moreover, the functional specification document includes detailed plans...

What is open source?

Open source software explained

What is open source software (OSS) and what is special about it? The history of open source and the principles of the freely accessible software development code date back to the very first Internet technologies. In this article, we will show you what the first open source models were, how open source differs from closed source software and how you can use it to your advantage.

Squid: the license-free caching server for your web project

Squid - the cross-platform open source proxy

If you’re optimising your website, then you shouldn’t just turn to content and design; it’s important to also make sure that you invest ample time into the functionality of your website. Usability and loading time are just as important for a website’s success as high-quality and regularly offered content. A long loading time is one of the main causes of high bounce rates. The simple solution: a...

Turning on incognito mode in Chrome

Incognito mode in Chrome: how to browse privately

If you want to surf the Internet in private, your best option is to use the Chrome incognito mode. Incognito mode is a security feature that lets you browse the Internet without your history, cookies or other browsing data being stored. Read on to find out how to go incognito in Chrome and why you might want to do this.

Raspberry Pi: How to set up an SSH server

Raspberry Pi: activating and using SSH access

Raspberry Pi has established itself as a reliable basis for servers of various types. Access – for configuration and maintenance purposes – rarely takes place on the mini computer itself, but mostly on a desktop computer in the same network. The communication protocol is the secure SSH (secure shell), which isn’t enabled by default and hasn’t been for some time. How to activate the Raspberry Pi...

The best alternatives to Facebook Messenger

The best alternatives to Facebook Messenger

Facebook's messaging function has long become indispensable as a means for many people to keep in touch with friends and colleagues – even on the move. Using Facebook Messenger app on your phone tends to use up a lot of battery power and internet data. Fortunately, there are good alternatives that allow you to navigate Facebook chats just as easily and quickly, and that often also help to protect...

Removing Excel Duplicates

Deleting Duplicates in Excel: How it Works

The Microsoft program Excel makes storing and processing data a piece of cake. But the more entries are added to a table, the greater the chance that some values are duplicated in the process. Excel offers a function for removing duplicates to solve this problem with ease. This allows you to delete redundant double entries with just a few clicks.

Ubuntu: The Linux system for everyone

Ubuntu: The versatile Linux distribution with long-term support

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...

Set up your own Debian FTP server with ProFTPD

Debian FTP server: how to install and configure your own

FTP servers are suitable solutions if you want to make files available for download or offer multiple users a platform for storing and accessing data. The practical server-client technology also plays an important role in the maintenance of web presences. This tutorial explains how to install and set up your own Debian FTP server.


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