URL: What is a Uniform Resource Locator?

URL: definition and areas of application

The Uniform Resource Locator (short: URL) is one of the basic standard tools of the internet. URLs make it easy to uniquely identify resources on the internet and find their location. Internet users use webpage URLs to surf the web, follow hyperlinks or download files. The concept is based on a human tangible syntax that is automatically read out and interpreted by machines.

Docker orchestration with Swarm and Compose

Docker: Orchestration of multi-container apps with Swarm and Compose

The container platform Docker offers native functions for the orchestration of containers in physical or virtual clusters. Docker also offers a tool for the deployment of multi-container apps with Compose. Thanks to the native swarm mode, you can scale complex applications by yourself on any number of Docker hosts. We show you how that works and offer comprehensive help in our tutorial for Docker...

DNS server not responding – what’s next?

DNS server unavailable? Here’s what to do

‘DNS server not responding’ is a typical error response on Windows. Its presence indicates that some sort of problem is occurring with your internet connection. This phenomenon can be the result of many different causes. In addition to network problems, routers, Windows Firewall, and the web browser are also taken into account when troubleshooting.

Terminal Servers – the Secret Behind Remote Hosts

Terminal servers: definition, basics, and advantages

In the days of mainframe computers and the first smaller networks, terminals were a crucial building block for sharing hardware and software resources. It is no coincidence that terminal servers – the central administrative entity of such networks – are in demand decades later, now that applications are to be made available to multiple users.

NGINX vs. Apache: A web server comparison

NGINX vs. Apache: A comparison of the most popular open source web servers

Apache vs. NGINX – while one is said to be bulky and unwieldy, the other is considered slim and high-performance. But can we be this general? In fact, both web servers are based on fundamentally different concepts when it comes to connection management, interpretation of client requests, or configuration options. The range of functions also display clear differences in software alignment. While...

What is ARP? – Address resolution in networks

What is ARP (Address Resolution Protocol)?

When computer information is sent in TCP/IP networks, it is first decompressed into individual data frames. In this way, you can transfer data of nearly unlimited size. The frames also contain the target system’s MAC address, without which a transmission would not be possible. If the physical address is not known, the sender must first be determined using the ARP Address Resolution Protocol. Here,...

The best Raspberry Pi operating systems: A brief portrait

Raspberry Pi: 10 operating systems for the minicomputer

The single-board computer Raspberry Pi has enjoyed high popularity since its release in 2012. With the increasing number of possible applications, the minicomputer has become an interesting and practical solution for various branches of industry. As a result, more and more operating systems for the British computer are being introduced to the market. Choosing the appropriate Raspberry Pi...

Bare metal servers | definition and structure

Bare metal server – dedicated hardware for high-level web projects

Bare metal – the latest product on the web hosting market evokes power from its name alone, and not for nothing: servers with this nickname focus on high-performance hardware. With a bare metal server, the user's access extends practically down to the bare metal. Software components based on this product are subject to user control and can be installed and configured according to individual...

CaaS (Container as a Service)- Service Comparison

Container-as-a-Service – CaaS provider comparison

CaaS – Container-as-a-Service – is the latest model in the cloud computing market: users can find suitable platforms for all established infrastructure providers. But what actually is CaaS? And what is the difference between CaaS and other cloud services, like Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS), and Software-as-a-Service (SaaS)? Here we introduce hosted container...

What is a root server? Definition and background

What is a root server? Definition and mechanics

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...