This is a postmortem document about a server that needed to be fixed because of an error in its configuration. Issue Summary: The outage was issued the day 7th in January 2020, it takes about 6 hours to be fixed. The problem was preventing the server from running so the connections were…

Internet of things is a very popular concept and one of the most promising technologies today because the connection between things and the internet has reached enormous levels. It promises to change the way we live in ways we can’t imagine. Connect the Internet to a cell phone, T.V. or…

Well actually, both of my grandmothers are not here anymore, but it is an interesting challenge trying to explain in a very easy way the complexity of Machine Learning. So I’m going to suppose you are one of them, welcome and let’s start. First of all, What is Machine Learning…

Usually, when we start programming for the first time we use the called procedure-oriented way, which consists of blocks of statements that manipulate data, the programs are created with this paradigm, are made around functions. …

Everything is an object in python! And every object has an identity, type, and value, but objects can be Mutable or Immutable, this is what this blog post is about, so let’s dive into the issue. We are going to see different concepts so, be aware of the details. What are objects? An…

Hello there, in this blog we are going to talk about C libraries again, but this time I’m going to do more emphasis in the Dynamic or Shared libraries. Libraries are sets of objects or collections of pre-compiled codes that can be used or reused in different programs, and they…

In this blog, we are going to see what happens ‘under the hood’ when we type the command ‘ls -l’ in the shell. In a general way, the ‘ls -l’ command is used to list files of the current working directory in a long format.

Welcome again!! In this blog, I’m going to talk about how integers are stored in the computer, as you know all we can see on our screen is actually the result of binary machine code converted to numbers, letters, images, etc. Storage is a complex process but we can say…

Welcome again! What exactly the title of this blog means? We are going to see a ‘messy’ code, that uses ‘unnecessary’ MACROS, then try to understand what is going on and make it simpler. For that purpose, I’m taking the 1986 award-winning IOCCC code of Jim Hague. The International Obfuscated…