Janos

👋 Hi!

I’m a software engineer specializing in server applications and system-level software development, but sometimes I venture into the front end world too. Quite often I find myself taking a deep dive into a topic that tickles my brain.

When I’m not coding I like spending time outdoors, such as cycling, climbing. We are writing this blog together with my partner Sanja.

You can find most of my work on GitHub.

20,000 lines under the Go-cean

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Last year I wrote two blog posts about the programming language Go. This is the follow-up after having written over 20,000 lines of Go code.

The 512-byte VM

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What’s the smallest virtual machine you could create? Or, why would you want one?

IPVS: The Linux Load Balancer (Deep Dive)

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Did you know Linux has a built-in network load balancer? Did you know it is used by Kubernetes? Let’s explore!

Into the new School Year with Open Source and YouTuber Spirit

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Instead of doing the same old bad slides combined with bad audio on Zoom, let’s learn from YouTubers and dig into free and open source tools to change the way we teach in the face of the pandemic.

TCP connections can break silently

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Are you thinking of using Microservices? Here’s something you may not know: TCP connections can break entirely silently.

Cloud Computing Course

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In 2020 we created a fully online course material for the University of Applied Sciences, Vienna.

Mockito is Bad for Your Code

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Mockito, a tool to make mocking easy, is actively encouraging test code. Here’s why.

What even is “Senior”?

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“Senior Software Developer” — says the text on the business card. But what makes someone senior? Is it the age? Is it the years in the business? Know-how? There’s a sometimes heated and, to some extent, endless debate going on what makes an engineer senior.

Don’t Block ICMP

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“Don’t ping my server!” — is the sentiment among many sysadmins, and usually leads to a full-on ICMP blocking. But, it’s a terrible idea. Here’s why.