How to check Debian version
How to check Debian version: the quick and easy way
  • Know-how

Knowing which Debian version you have not only helps you to choose the right install package for a program – you also need it to get appropriate support in forums. There are several different methods to check your Debian version. In this step-by-step guide, we’ll explain how to check your version using Terminal and Hardinfo.

How to check Debian version: the quick and easy way
ISO 8601
ISO 8601 – Effectively Communicate Dates and Times Internationally
  • Web development

Different countries sometimes have different regional date and time formats. This can often result in preventable errors, especially when sharing data. For instance, the format 7/9/2019 means “July 9, 2019” in some countries, and “September 7, 2019” in others. To solve this problem, the ISO 8601 standard was agreed internationally. But what exactly does this standard specify?

ISO 8601 – Effectively Communicate Dates and Times Internationally
ERR_TOO_MANY_REDIRECTS
ERR_TOO_MANY_REDIRECTS: How to fix the error
  • Technical matters

Too many redirects! If a redirect or forwarding to a website does not work properly, your browser will inform you of this error, preventing you from getting stuck in an infinite loop. In our article, you will learn exactly what ERR_TOO_MANY_REDIRECTS is, how the problem arises, and what you can do when there are simply too many redirects.

ERR_TOO_MANY_REDIRECTS: How to fix the error
ERR_NAME_NOT_RESOLVED Error
“ERR_NAME_NOT_RESOLVED”: how to fix this DNS error in the Google Chrome browser
  • Technical matters

Chrome has recently become the most widely used browser in the world. However, this Google application is just as helpless as its competitors Firefox, Opera and Safari when it comes to technical problems on the server or client side. For example, if the domain name cannot be resolved by the DNS, Chrome will simply display the error message “ERR_NAME_NOT_RESOLVED”. In the following article, you...

“ERR_NAME_NOT_RESOLVED”: how to fix this DNS error in the Google Chrome browser
ERR_CERT_COMMON_NAME_INVALID
ERR_CERT_COMMON_NAME_INVALID: understand and fix the error
  • Technical matters

ERR_CERT_COMMON_NAME_INVALID is an error message shown by Chrome when there are problems with a website’s security certificate. This error message prevents you from accidentally visiting an unsafe website and it keeps visitors safe from third parties trying to steal their data. Here is how to fix the error with different methods.

ERR_CERT_COMMON_NAME_INVALID: understand and fix the error
Goodbye email to coworkers
Goodbye email to coworkers and customers: Templates and tips
  • E-mail marketing

With your goodbye email to coworkers and customers, you can demonstrate professionalism, show your sense of humor, and leave a good impression. Read our tips on choosing the appropriate tone, recipients, and timing for your message, and learn what you should and shouldn’t say in a goodbye email. Use our sample emails for inspiration when it’s time to you write your own farewell email to coworkers....

Goodbye email to coworkers and customers: Templates and tips
Provide Raspberry Pi with a static IP address
Equip Raspberry Pi with a static IP address
  • Configuration

Both the private Raspberry Pi IP address and the public IP address of the internet connection are constantly changing for most users. Such dynamic IP addresses aren’t practical for the use of a minicomputer. But if you want to use server software effectively on your Raspberry Pi, you need a static IP address for the computer in the local network. The internet access used to make the server...

Equip Raspberry Pi with a static IP address
Markdown editors
Markdown editors for Windows, Mac and Linux
  • Web development

How can you easily format texts for use online and offline? This becomes a piece of cake when you use the markup language Markdown and an editor. With these editors for Linux, Windows and Mac as well as the online editors, you can create Markdown documents and convert them into HTML pages. But what are the best Markdown editors?

Markdown editors for Windows, Mac and Linux
Task Manager Mac
How to open the Task Manager on Mac and monitor load
  • Configuration

As in Windows, there is a shortcut that opens the Apple Task Manager. However, unlike the Windows version, the Mac Task Manager only lets you close programs. It doesn’t show you CPU load or energy usage. If you want to check these stats, you need to access the Mac Activity Monitor instead.

How to open the Task Manager on Mac and monitor load