We are CYBER ONIONS, a small web development and information security studio. We work in cybersecurity and ethical hacking, with Linux servers and VPS, with WSL2 environments, and with technical training. We also develop in PHP and JavaScript, with web applications and databases, using only open source technology.
Read more →PHP, JavaScript and web applications
23 articlesMySQL, SQLite, queries and optimisation
3 articlesLinux, hardening, backup and monitoring
7 articlesLinux, CLI, WSL2, shell e ambienti
8 articlesdigital systems, networks, devices, and data
14 articlesNo licence constraints
6 articlesFrom cables to applications, in four layers and without shortcuts. Why the stack is layered and what that really means, how a packet crosses ten routers, what sets TCP apart from UDP, and the MTU and port numbers that explain half of all network problems.
Read the article →Nmap, Metasploit Framework, sqlmap, ZAP, hashcat: what they really cover and where they do not. Why the free version is preferable in at least six cases out of seven, and the three cases where it is not. Including the mistake to avoid, which is to stop treating them as a black box.
Read the article →The word hacker never means what the press wants it to mean. The definition in the Jargon File and in RFC 1392, why cracker is a pathology semantically before it is legally, what a lamer is, and the three philosophies competing for the scene. With the rule that actually tells them apart.
Read the article →An operational vademecum for anyone working in security: the order in which you look at a system, the things you always check, the ethical rules that are not negotiable, and the story of the greatest hackers with an explanation of why they were.
Read the article →Why most security tools are written in Python, what makes it suited to offensive work, and the story of the language from 1991 to today. With the ethical boundary put where it belongs, and Python’s limits stated plainly.
Read the article →