Preamble What have you used in school as a learning material? The books! Exactly! When it comes to learning material, books have always held a significant role. From our school days, we have been ingrained with the idea that books are the primary source of knowledge. As a college student embarking…

Hello. My name is Artem. I have been working as a DevOps Engineer for 3 years, but I also interested in CyberSecurity. Recently, I wondered how best to learn cybersecurity. Today I want to tell you what conclusions I made while trying different methods. Before we start, I would like…

Recently, I watched the video “Squidward smoked Weed”. According to the plot, he purchases weed from a drug dealer. I got interested immediately, why people purchase drugs from the dealers, if there are lots of other safe methods? …

Once upon a time, there was a guy named Felix, who was born in a poor family. His tend for independence and wish for his family to live a normal life was so strong, he decided to beat this life and came out as a winner. Mom always told him…

Hello, my name is Artem, I’m from Ukraine, and I’m working as a DevOps Engineer. Used to work because my contract with team exceeded. Now I’m unemployed. When I actually received information about my dismissal from the project, I was shocked a bit: there is a war, economic problems in…

Have you ever find yourself obsessively searching for lists of the best OSINT tools, or tools that claim to be able to find everything? Do you believe that a well-curated set of tools will make you the best OSINT researcher possible? I also used too. And it’s worst approach you…

What is DNS? Let’s start from the very beginning. DNS stands for “Domain Name System”, which provides you OSI-compatible set of protocols for transforming domain name to IP-address (and other data, but we will talk about it a bit later). Why do we need that? IPV4 protocol provides you about 255⁴ = 4,228,250,625…

Github provides you great feature, as customization of your personal page, using markdown document and special type of GitHub repository. Let’s take a look on my personal GitHub page, for example.

What if you need to organize local network, for company or your SOHO? It’s quite easy to connect all your PC’s and other network devices to switch and finally connect switch to newly-installed router. But what if you need to implement more complicated network, for two-storied building? This task requires…