Weekly summary #9
Reading Time: 2 minutesSummary of the ninth week of my #SeniorDevRevamp project. Overall summary AWS Dev Associate certification preparation was still going on – ANKI all over, and I have started to go through TutorialsDojo exam cheat sheet (and a couple of others). It is a nice way to summarize the knowledge I have, and also add some
Current state of GC in Java 23
Reading Time: 13 minutesJVM is famous for its memory management. 90% of Java ecosystem consists of automatic memory cleaning, with garbage collector doing its job all the time. The whole concept is very broad. You can for sure get a PhD in the area, and there still will be something to learn. My ambition here is not that
Back to basics #5 – TCP/IP tracing and routing
Reading Time: < 1 minuteThe last subject in the TCP/IP knowledge that remained, was tracing and routing. In short – how does a request reach the destination? I have read all the books, and watched all the videos. After doing that the decision was simple – there’s just no need to write. Just watch the linked YouTube video and you’re good to go. Enjoy!
Weekly summary #8
Reading Time: 3 minutesSummary of the eight week of my #SeniorDevRevamp project. Overall summary AWS Dev Associate certification preparation was still going on – I have scheduled an exam for 3rd of September. Unfortunately, there was no way to have it sooner in the on-site form. For the time being I have settled with ANKI flashcards every day.
Back to basics #4 – NAT and private networks
Reading Time: 4 minutesNAT is the sole reason why we still can use the internet today. With IPv4 limited number of IP addresses, introduction of private networks saved the day. At least until IPv6 takes over the world. Today I am going to take a quick look at what this whole NAT is all about. NAT scene setup
Monthly summary #2 – July 2024
Reading Time: 3 minutesWe are in the middle of the summer. Sunny sky, temperature is high, and everyone dreams of vacation. On the other hand, I am not stopping. This is my second monthly summary entry. Let’s go! Monthly summary A lot has happened during this month. I’m reading my weekly summaries now, and I am genuinely surprised,
Weekly summary #7
Reading Time: 2 minutesSummary of the seventh week of my #SeniorDevRevamp project. Overall summary AWS Dev Associate certification preparation has reached its peak phase. This week I have done two mock exams, with three more to go. I have dedicated some quality time to reading and watching materials about specific AWS concepts. Frankly speaking, I experience typical Krugger-Dunning
Back to basics #3 – IP
Reading Time: 4 minutesToday we will continue our short review of TCP/IP basics. In the previous article I have just scratched the surface. Today, let’s concentrate on some deeper concepts. All hail IP&CIDR! What are you doing exactly IP? To start with – below I am posting again the layered model of the networking stack (thank you Wikipedia).
Back to basics #2 – TCP/IP 101
Reading Time: 3 minutesRecently, as I was preparing for AWS certifications, all kinds of networking concepts seemed to pop out everywhere. I was afraid to open the fridge. I was worried that some kind of VPC configuration and routing table will jump right at me 😉 Building on that let’s dive into the very basics of what this
