Ubuntu backup
Ubuntu backups: A step-by-step guide
  • Security

It’s important to regularly make backups in Ubuntu. That’s the best way to protect yourself from accidents like the loss of data or a system crash. We’ll explain how to carry out a backup in Ubuntu, what you’ll need, and how you can schedule backups for later. We also touch on solutions for server backups in Ubuntu. Read on for more.

Ubuntu backups: A step-by-step guide
DNS propagation
What is DNS propagation?
  • Know-how

If you change the DNS of a website, it can take hours or even days for the changes to reach each server. This transition phase is called DNS propagation. Our article shows you what it is, where the delay comes from, and how you can easily test DNS propagation.

What is DNS propagation?
Photon OS
Photon OS: Container virtualization by VMware
  • Configuration

VMware created a very lean, secure, and powerful Linux distribution for container virtualization: Photon OS. It has been optimized for the parent company’s platforms. We’ll explain what Photon OS is, what advantages and disadvantages the operating system has, and when you’d want to use it. Read our article to find out more.

Photon OS: Container virtualization by VMware
WordPress plugin favorites
WordPress turns 19: our 19 favorite plugins
  • Blogs

From boosting security and privacy to web development – there are plenty of useful WordPress plugins. Almost any conceivable field of application is now covered by the plethora of practical extensions. To celebrate the 19th birthday of the CMS, IONOS has decided to share its favorite plugins and you might be surprised.

WordPress turns 19: our 19 favorite plugins
WhatsApp Desktop video call
WhatsApp Web video calls with WhatsApp Desktop
  • Social media

A WhatsApp web video call is not yet one of the features of the popular messenger service’s web version. However, those who use the desktop version have been able to make WhatsApp desktop video calls since 2021. All it takes is a WhatsApp account, a connected smartphone, and a QR code. We explain how to make a WhatsApp video call on PC.

WhatsApp Web video calls with WhatsApp Desktop
WordPress themes: elements and structure
WordPress themes: elements and structure
  • Blogs

The blog software, WordPress, has many strengths, one of them being that design and layout can be separated from the program core. This allows users to customize the appearance of website content using themes without having to interfere with the actual software. Here, we explain the function of WordPress themes, their components, and their structure.

WordPress themes: elements and structure
The most important SEO tools at a glance
The most important SEO tools at a glance
  • Search engine marketing

If you want your business to be successful online there is no getting around Google. The magic term is search engine optimization (SEO), and up until a few years ago this marketing knowledge was kept a secret. Now there are many practical tools that can help get you gain a better overview of the keywords, rankings, and performance of your website and can even be used by beginners.

The most important SEO tools at a glance
WebDAV
WebDAV: This is how the HTTP extension works
  • Know-how

Files can be made available on and transmitted via the Internet with the WebDAV protocol. It is one of many protocols with this feature and an extension of the well-known Hypertext Transfer Protocol (HTTP). We answer the most important questions regarding WebDAV and explain, among other things, how it enables users to create and move documents on servers.

WebDAV: This is how the HTTP extension works
Trivial File Transfer Protocol
TFTP (Trivial File Transfer Protocol) – File Transfer Protocol made simple
  • Know-how

The Trivial File Transfer Protocol (TFTP) is one of the oldest and simplest network protocols. It allows two systems to exchange files on the local area network without having to establish a connection beforehand. To do this, TFTP uses the connectionless transport protocol UDP, which serves as an alternative to the more common yet more complex TCP. What other features set the TFTP protocol apart,...

TFTP (Trivial File Transfer Protocol) – File Transfer Protocol made simple
Server Name Indication
Server Name Indication (SNI): What’s behind the standard?
  • Know-how

What is server name identification, really? Encryption technologies play a big role when it comes to surfing on the net. Credit card data and other personal information must not fall into the hands of criminals. For now, TLS is one of the protocols used for this purpose. But it has a disadvantage: it only functions when each IP address only hosts one domain. If multiple virtual services are...

Server Name Indication (SNI): What’s behind the standard?