Network

Securing a server: correctly configuring Linux, etc.

If you operate or rent your own server, it is your responsibility to protect it against failures and external access. You can immediately begin to set the foundation for this when configuring the server, if you have the necessary administrative rights. The correct settings can work wonders, especially with encrypted remote connections via SSH protocol, and greatly increase security. [...]  

Social intranet – what is it?

One of the most important parts in modern, digital corporate structures is the networking of individual departments and employees. Whether SMEs or large corporations, passing on information, knowledge, and feedback at a snail’s pace, not only slows down the daily work processes, but also has a negative effect on the company’s progress and development. Social intranets are therefore being used more frequently and help by adding features from social networks to classic corporate networks. [...]  

Remote desktop: Success of the application

Remote desktop connections are indispensable for day-to-day business. More than anything, allowing remote control access from another computer saves time: Whether for support, online conferences, or home office — with remote desktop, you can easily and conveniently connect your computer to distant devices. Private users also benefit from remote use: By connecting with different operating systems, you can, for example, manage all of your apps from a single location. Read here with us about how it works and whether it’s right for you. [...]  

Server operating systems: a history and overview

Operating systems have gone through some major changes over the years. While their beginnings are rooted in more humble, purely text-based user interfaces, today’s options have evolved into complex software packages with graphical interfaces, comprising an elegant go-between for hardware and software applications. Users, who have long since been equipped with a keyboard and mouse, are able to easily manage system resources. Operating systems for servers are also in greater demand than ever, particularly when it comes to web hosting. But what are today’s most widespread operating systems? And which systems were they predated by? [...]  

What does ‘502 bad gateway’ mean?: Explanation and solution

HTTP status codes emerge when something isn’t running properly on the internet. In this respect, the 502 Bad Gateway error is no exception. But this familiar error message can be particularly tricky: It’s not actually clear where the source of the problem lies. In the chain of gateways along which internet requests run, the error could occur at a number of different points. This article explains where internet users and webmasters can start their search for the source of the error. [...]  

What is a root server? Definition and background

When you call up a website, the entered domain first needs to be turned into an IP address and read out from the browser so that the page can finally appear in the browser. This process is known as name resolution. Here, the root name server or (DNS) root server in the domain name system plays a key role. But what is a root server? And what exactly goes on when they receive requests for translating a domain name into an IP address? [...]  

DHCP: An overview of the Client/Server protocol

If you’re connected to an internet router and power on your computer, it automatically obtains the necessary network parameters, such as the IP address, subnet mask, or DNS server. This is made possible by the Dynamic Host Configuration Protocol (DHCP), which simplifies address assignment when connecting to the internet and makes setting up local networks easy as pie. [...]  

Skype alternatives | 13 other video chat programs

For millions of people around the world, video chats and conferences are an essential part of daily life – for both work and leisure. When it comes to video telephony software and applications, Skype is by far the leader of the pack. In fact, many people are unaware that there’s a considerable number of good alternatives to Skype on the market, which are also available free of charge. Some of these programs even boast extra features that can’t be found with the market leader. But which of them are really the best Skype alternatives? [...]  

LinkedIn ads: B2B marketing in the business network

LinkedIn is the first port of call for global B2B marketing. Contrary to Facebook, Instagram, or Pinterest, you can reach the community in your business network on a professional level instead of through funny videos. LinkedIn ads give you multiple formats to choose from to address your target group. From content marketing to classic banner advertisements: We explain what the various options are good for and how to correctly use advertisements on LinkedIn. [...]  

How to make your Raspberry Pi into a DNS server

Without the domain name system, surfing on the internet would be much more difficult, as we would have to memorize a lot of IP addresses. With the help of DNS servers, we can instead use a memorable domain name to access our favorite website. Find out how you can set up your own DNS server and learn more about the basics of the World Wide Web. All you need is the minicomputer Raspberry Pi and an internet connection! [...]