Computers simplify our working life and everyday life in many ways. However, if they do not run as usual, they can become more of a hindrance than a help. The various possible causes of performance problems include excessive memory usage, which plays an important role in managing active processes. One possible solution is to clear the RAM, and thereby increase your RAM.
Various operating systems, such as Windows or macOS, automatically save information about address resolution from systems and applications in the network in a DNS cache. For Linux there are also corresponding services, though they have to be installed by the user. The purpose of this practical cache is to speed up network traffic, which is particularly important on the internet. Why it’s useful to...
For the past 30 years, the file transfer protocol (FTP) has supported computer users with the transfer of data in TCP/IP networks. FTP servers enabled not only the upload but also the download of files, in which each access is controlled via a separate connection. In this Ubuntu FTP server tutorial, you’ll learn how to install, configure, and run your own server under the Linux distribution.
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.
With screenshots, you can show your colleagues and friends with just a few clicks what you’ve just seen on your screen. This can be an important part of your daily workload as well as something you use in your free time. But how do you actually create a screenshot? On Windows, the necessary resources are already built in. We explain to you how to use them correctly.
The big problem with many Windows error messages is that users hardly ever understand them. For instance, messages with the code “0x80004005” indicate an “unspecified” error. Since these kinds of errors can occur in all sorts of scenarios, we present a range of solution strategies that can prove helpful.
Screenshots can be extremely helpful and beneficial. Regardless of whether you are sending them to friends or using them professionally, it is always going to be easier to demonstrate it this way than having to describe it. Making iMac or MacBook screenshots is very easy – as long as you know how it all works. Here we show you all the keyboard shortcuts for making screenshots on a Mac, as well as...
The open source container platform Docker is quite exciting to the open source community. As an alternative to hardware virtualization based on virtual machines, Docker has made the use of software containers acceptable outside of the Linux universe. In our tutorial for beginners, we break down the Docker trend from the ground up. With these clear, step-by-step instructions, learn how to install...
In this article we will give a definition of virtualization, and look at in which cases virtualization technology can be used. Furthermore, we will also look at the forms of virtualization which everyone should be familiar with, with a specific focus on corporate environments.
The Scala-based streaming and messaging software is one of the most popular solutions for efficiently storing and processing large data streams. In this Kafka tutorial, you will learn the requirements for using this open source software and how best to install and set up .