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I know zero thing about GPS receiver. And I may not build this after reading this article, but my knowledge indeed improve on this topic. I understand more about the technology that we use day to day

Simple way we can use shared file, you can use a client <-> server, but that involve you are need to setup port, sending and serializing data. What if you want your processes to be independent, to communicate, and yet not distribute some arcane shell scripts along with them? It turns out that other IPC mechanisms allow you to do all these. This a series so make you check all the part.

Challenge of building a data warehouse. How to load a massive amount of data quickly,

analyze traffic of DNS is a easier and fun practice because it has no encryption, unlike HTTPS or SSH. So you can actually look at the payload. In this article we will walk through th exercise to analyze this traffic of querying a DNS end to end, what happen, where do they get their data. Knowing this knowledge will put you on the top 10% of software programmer.

Have you ever query 169.254.169.254 you deal with AWS IDMS service. Anyone can query that from an EC2 instance. In 2019, they release IMDSv2, which require a token so it’s more secure. Slack running 60,000 AWS instance. How can they roll this out safely across the fleet of services on all these 60,000 server to use IDMSv2

The JS Profiler is going away in Chrome 124, so we would need to familiar ourself with the newer approach.

With all the trend about LLM, maybe time to dust up our math skill in high school.

Any database engine, including PostgreSQL, requires some routine maintenance to ensure optimal performance. Especially when there are massive delete or purge operations to delete rows from a Table, the fragmentation builds up within a table. Reclaim this fragmented space from disk requires a table to be rebuilt