What would you do if one day you’re realized your modem was being hack and MiTM your request? In this amazing and crazy stories, a Cox modem was hacked. The bug was also really interesting, if repeated a same request multiple time, we will eventually can by pass the authentication.

printf vs debugger is a holy war in programming, and has cause endless internet fight or fame. Today, we won’t go into that. We will simply go through a list of common scenartio and see how we can use printf to debug the situation. This is a Ruby article, but if you like the approach, they can easily ported to your own language. Methodlogy is what we will focus here.

pid 1 is the first process the kernel start. If you user docker and want to run multiple process, you definetely had deal with the pid 1 before. but what about pid 0 ? what is that?

If you need to do an editor, a web diagram drawing tool, how would you handle the real time aspect? This post records some though on How to architect a real-time collaborative app when you do have a central server.

Throughput - the rate at which you can send or receive data across a network Throughput is usually quoted in bits per second, and on modern internet networks, these range from a few millions of bits per second (Mb/s) to a few billions of bits per second (Gb/s). If you had work with a remote connection such as SSH through a VPN tunnel you will notice the differencies of responsiveness when workign with a code editor. Coder is self-hosted cloud development environments, and they build their own TCP stacks, and share with us experience and their deep dive to increase perf 5x.

Hay Day is a game where you planted and sold fruit tree. Tree takes time to grow. Trade need to be matched. How can we put together these thing in a game?

In order to understand Promises, we need a surprisingly deep understanding of how JavaScript works and what its limitations are. Without that context, Promises won’t really make much sense.

Normally, COMMIT is a very fast statement in PostgreSQL, so that is worth investigating. In this article, I will explore the possible reasons for a slow COMMIT and discuss what you can do about it.

NIST 800 are guidelines, recommendations, technical specifications, and annual reports of NIST’s cybersecurity activities. 800-108 focus on recommendation for Key Derivation Using Pseudorandom Functions. In this post, we will look into a novel security issue with this standard

To quote to OP, “Unsurprisingly, I’ve heard a few infosec thought leader types insist that encryption-at-rest is security theater over the years. I disagree with this assessment in the absolute terms, but there is a nugget of truth in that assertion.”. To which I agree.

I used to be able to pick-up Rust in a single week and become productive very fast. Rust has open us the ability to write low level component in such a high level language. This article exporers pgrx, which simplifies the creation of custom PostgreSQL extensions to bring more logic closer to your database.