How to install Netis WF2190 driver under Kubuntu

How to install Netis WF2190 in KubuntuThe following article is about how to find and install the appropriate (K)ubuntu driver for the Netis WF2190 WLAN stick. For a few weeks I work mainly under Linux (again) and as with almost every of my attempts trying to switch from Windows to Linux, there were again difficulties with the WiFi this time.
So, to spare you the hassle, I wrote the following short tutorial for you about how to install the Netis WF2190 drivers under Kubuntu.
Finding a Linux driver for a Netis WiFi stick
Before we begin, let’s make a small test by lsusb command. If you enter this command in the terminal, all connected USB devices are listed with fuirther information.

lsusb

As shown in the screenshot below, our WiFi stick is also included […]

How to convert Audible aax files to mp3 in Linux

 
Convert Audible aax-files to mp3 in LinuxSo far I always assumed that when I buy music or audiobooks on Amazon for download, I’ll get mp3 files for download. Far from it – yesterday I once again bought a an audiobook and had to find out that I was forwarded after the purchase to Audible and there was confronted with a “protected” aax file. If I wanted to buy at Audible, I would have gone to Audible. Thanks for nothing, Amazon!
But now the following question arises: “How do I convert the proprietary aax files into mp3’s, which I can play everywhere?” (aax files are only playable with the official Audible apps which aren’t available on all platforms.) After all, when buying on Amazon, there wasn’t the talk about the fact that the purchased audiobook […]

How to disable PHP OPCache for certain directories

Deactivate OPCache per folderIn this article, I want to show you how to disable the OPCache based caching for certain directories. (If you need a short introduction to the subject of OPCache, you should scroll down to the blue box in this article.) Although OPCache is a good idea in almost all cases, there are, as with many thing, situations where you should make an exception. Especially when it comes to the development or if a bugfix is to be tested, it can make sense to disable OPCache.
However, since other projects that benefit from OPCache are often running on the same web server, a complete deactivation of OPCache for such test cases can not be an option. Therefore, this article is about how to disable OPCache on the directory […]

How to open the default mail client in Java

Open standard mail in JavaIn the following post there is once again a small Java code snippet, by means of which the standard mail program can be called/opened.
In order to open the standard mail application in almost any operating system, a URI with the mailto protocol is suitable. Therefore, the following Java code must be able to compose the mailto URI format.
The second difficulty is to resolve this URI (or in simple words – to execute this URI). Unfortunately, this can not be executed directly using the Runtime.getRuntime().exec()-command, but must be started as a parameter via a system-specific program. Our Java-Snippet must therefore be able to distinguish between the operating systems.
Open standard mail in Java
The sample code can be run as it is and opens the default mail program with a […]

How to detect operating system in Java

Detect operating system in javaIn the following article, there is a short Java snippet that can be used to read the operating system of the computer running the Java program.
In addition, it is the first Java snippet at all here in the blog. Although I have been writing a few lines of Java code again and again for a couple of years, I really couldn’t befriend myself (especially with regard to my C # passion) with Java so far yet. But since I have to deal more and more with Java on the job, however, this will soon be reflected in the blog. But let’s come to the Snippet now…
Read operating system in Java
In order to identify the computer’s operating system in Java, the getProperty-method of the system-class is suitable. Using […]