Jani Karhunen

How can I find out, if network connectivity is allowed to a specific destination address and TCP port? If you know the destination IPv… »

Often it is important to find out, what is my machine's public IP address. There are numerous websites to get this information, but it is… »

I mostly use containers for development, but sometimes a local Node.js development environment is needed. I like to use nvm to manage my… »

As a developer I will come across JSON Web Tokens (JWTs) all the time. In many cases during development and issue resolution I will need to… »

On the other day I was writing a function, where I needed to filter and "simplify" an array of JS objects. The logic to filter was somewhat… »

I have used and loved Todoist for my task management needs for a couple of years now. Many times I have had trouble deciding, when to add… »

I am quite active on Twitter, and it feels like a natural platform for me. On the other hand, I would like to have more active presence on… »

I like to keep my machine nice and tidy. Thus, I really like to develop and "install" 3rd party tools as Docker containers. In this… »

Funnily enough macOS does not come with the shell command . Tree is the handy little command-line program, which lists the directory… »

This is a quick one; Suppose you have a Free Trial Azure Subscription. On that Subscription, you have deployed a web app on the App Sevice… »