Welcome to TechScreen

Welcome to the TechScreen site. This side shall support the exchange of knowledge in the domain of Web Engineering and related aspects. As a side effect, this side is used for research on knowledge management technologies. User can pose challenges in the problem domain and can participate in quizzes. Further a bibliography about arcticles in different related domains is continously extended. Finally, questionnaires on different issues are provided. To be able to participate you need an account and a password from TU Wien's TISS system.

Docker uses way more memory than python program on its own

I have created a program in python that simulates business processes. For extremely large processes, the simulation can run for hours and the memory requirements are in GB. However, if I create a docker container, the docker image consumes cca 3x more memory than the original python program and if I limit the memory of the docker to even 2x the original python memory, the python program inside the docker will fail with out of memory error.

Online survey tool

Like many other students, I am looking for a suitable tool to conduct online surveys. I would be very grateful to get some suggestions and experience reports.

Camera is not found on Zoom?

I usually don't have any problems turning on my microphone or camera at Zoom. During an exam (right there, of course), I suddenly couldn't turn on my camera. When I tried to click on the corresponding sign, I was shown that no camera could be found? This problem was so strange that I didn't know how it happened and how to solve it. Finally, I joined the meeting with a second device, on which, fortunately, the camera worked. In later meetings the camera worked normally again.

Cannot change my name on Zoom

After joining a Zoom meeting, I noticed that I can't easily change my name. Normally, there is an option to change my name by going to "All Attendees" and hovering over my name. However, for some reason, this option was not available during a lecture.

Access Content from VPN in remote desktop

The repository for a lecture in the TU Wien is only accessible in the local network of the university. As I tried to access it from a remote desktop, I couldn’t establish a VPN connection with Cisco AnyConnect Secure Mobile Client.

Cannot connect to demote desktop after Docker installation

I have tried to install Docker Desktop on a company PC while working from home, where I followed the instructions and clicked the big restart button after the installation was complete. The computer shut itself down and was supposed to restart, I couldn’t connect via remote desktop.

Connecting Local Git Repository to GitHub does not work

I two courses I take this semester the code for the exercise part of these lectures is hosted in a GitHub repository. As I am required to work with the code, I need to interact with the remote Git server. When I try to pull by using git pull in command line as well as in the Eclipse IDE, a pop-up opens where I need to authenticate myself by providing username and password.

How can I easily test responsive web design?

I am currently developing a web page and want to test and debug the site for responsive web design. For example, on smaller displays, I want to display items that are usually displayed side by side on the page to instead be displayed beneath each other. Are there any other ways to achieve this other than simply resizing the browser window?

How can I easily store and share data with my family at home and beyond?

In our home, we want an easy way to share data between different PCs. Most family members have their own laptop or PC. To share data between these PCs, we have thus far used USB sticks to transfer said data. However, since new laptops from different manufacturers seem to favor different ports, it has become more and more of a hassle of the several different adapters needed. Furthermore, the data is often not really required on the PCs themselves, and so they usually end up on external drives and sticks that tend to get hidden away in drawers or lost.

How can I deal with a weak Wi-Fi signal?

We live in a 2-story flat, and the Wi-Fi signal works fine on the lower floor, where the router is located. On the second floor however, the signal seems to come in and out, even though the signal strength indicator displays around 50% signal strength. We have tried placing it in multiple locations on the lower floor but are ultimately somewhat restricted by the wall connector. Furthermore, there are no LAN connectors going to the upper floor, or anywhere else in the entire flat.


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