You don’t always have to use the market leader – this also applies to remote access. TeamViewer is still the most widely-used solution for remote management and online meetings, but there are numerous alternatives on the market which can be considered. We present some serious...
The Berkeley Packet Filter was developed in 1992 to filter, receive, and send data packets securely. The filter forms interfaces with security layers which are tasked with recognising incoming corrupted data contents, for example. This allows them to be discarded or corrected right away. We explain how the BPF works.
Windows operating systems can be controlled and configured in a wide variety of ways. To this day, experienced administrators use Command Prompt, the Windows command-line interpreter, for this purpose. If you want to have Windows automatically process a sequence of commands, you can create a batch file. This tutorial will show you how.
The ping command line program is available to you on all current operating systems. Using a step-by-by step tutorial, we’ll show you how you can activate ping in Windows via the command prompt and how to employ the tool for network diagnostics to verify the connection between two computers.
The function to split a screen on a Mac desktop or a MacBook provides a convenient way to view and work on two open applications simultaneously. In order to split a screen on Mac, you only need to follow a few simple steps. The opened applications can then be viewed next to one another.
The Internet protocol family – the cornerstone for communication on the Internet – has around 500 members who work on a wide variety of layers. For example, the connectionless User Datagram Protocol (UDP) is responsible on the transport layer for the transmission of packets that were previously addressed via the Internet Protocol (IP). In this guide, you can find out exactly what distinguishes...
The Bluetooth wireless technology standard is well established in the IoT industry and enables wireless connections between all kinds of digital devices, regardless of the operating system. The process of connecting Bluetooth devices, called Bluetooth pairing, is similar for all devices. But sometimes you may encounter problems. Learn how to fix pairing problems and how to connect Bluetooth...
Passwords have long ceased to offer sufficient protection when surfing the internet: They are easy to crack, easily tapped, and difficult to remember. Together with the FIDO Alliance, the World Wide Web Consortium has developed a new standard. WebAuthn is intended to make logging into social media or online shopping portals easier and safer. How does it work?
DHCP snooping makes a network more secure. There are no two ways about it: DHCP makes network configuration so much easier. This is especially the case in large networks, where devices are constantly changing and the manual assignment of IP addresses is a never-ending task. Yet by using DHCP to simplify the process, you do relinquish controls, and criminals can take advantage of this. By using...
Sending data over networks is one of the most important and highest utilised functions of the modern computer era. But the structure of the necessary TCP/IP connections makes it all too easy for criminals to intercept data packets along their way and either view or alter their contents. One of the most common methods of attack is IP spoofing, which allows DoS and DDoS attacks, among other things...
When it comes to network security, administrators focus primarily on attacks from the internet. But often times, the danger lurks in the internal network. If the LAN turns out to be a blind spot in the security IT, then internal attackers have an easy time. A popular method of attack is ARP spoofing. With this, hackers switch undetected between two communication partners in order to intercept,...
Servers are what make up the physical basis of the internet. Setting up your own professional site, putting products online for sale, or connecting multiple company locations with one another: all of these tasks require the support of high-performance computers. And it doesn’t matter if you purchase hardware resources for your own data center or opt for the flexibility of cloud services: operating a server comes with the challenge of independently configuring and administering hardware components. But don’t worry, there’s a lot of support out there for these tasks. In the Server Guide of IONOS’s Digital Guide series, you’ll find regular articles, news, and tutorials on how to operate this indispensable component of today’s IT infrastructure.
Packed with practical tips, our guide covers a wide spectrum of topics primarily aimed at mid-sized companies, freelance developers, and tech hobbyists. While some articles, like ‘What is a server?’ or ‘DNS – name resolution online’ cater more to beginners, experts are by no means left hanging; there’s a wide range of detailed texts and tutorials on important tasks like choosing the best operating system, filling security gaps, or getting the best possible performance out of your software and hardware.
If you take a look, you’ll notice our guide is divided into four different subcategories, each covering a different topic. The ‘KnowHow’ area sets out to familiarise beginners with the basics of operating a server. Details on different server types and how to use them are also laid out here. Tips and tricks on managing server software is found under the keyword, ‘Configuration’. The category, ‘Security’ is all about dealing with potential problems server operators may encounter from online threats. Conventional methods of attack, like viruses, worms, and Trojans, and what you can do to combat them are explained here. And the category, ‘Tools’, provides useful guidance on what resources can help make administering your server a more manageable task.
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