I’m a data-driven tech enthusiast with a solid background in computer science and hands-on experience in data analytics, AI, and machine learning. I thrive on turning raw data into actionable insights, building predictive systems, and creating smart tools that solve real-world problems.
Skilled in Python, SQL, Power BI, and Tableau — I’ve led projects across industries like cybersecurity, IoT, and aviation, always focused on impact, innovation, and integrity.
title: Crocodile date: 2025-06-06 author: Nicos draft: false tags: section: “HTB” categories: [“HTB”] Task 1 During our scan, which port do we find serving MySQL?
![[Pasted image 20250606171949.png]]
Task 2
What community-developed MySQL version is the target running? ![[Pasted image 20250606172223.png]]
Task 3
When using the MySQL command line client, what switch do we need to use in order to specify a login username?
![[Pasted image 20250606172601.png]] ![[Pasted image 20250606172607.
title: “Sql Injection” date: 2025-06-11T12:32:26+03:00 section: “security” categories: [“security”] title: SQL Injection 💉 date: 2024-12-09 draft: false tags: 1. What is SQL? SQL is a standardized (ANSI in 1986, ISO in 1987) programming language which is used for managing relational databases and performing various operations on the data in them.
Example SQL table containing employee data; the name of the table is ‘employees’:
userid first_name last_name department salary($) auth_tan 32147 Paulina Traves Accounting 46.
section: “cyber-shujaa” categories: [“cyber-shujaa”] title: “Intro Linux Fundamentals” date: 2025-06-11 LINUX FUNDAMENTALS
1.0 INTRODUCTION I see Linux as a powerful, secure, and flexible open-source operating system that plays a crucial role in cybersecurity. It manages hardware and software resources, much like Windows or macOS, but is unique due to its many distributions tailored to different needs.
It all started with Unix in the 1970s, leading to the GNU Project and, finally, the Linux kernel by Linus Torvalds in 1991.
section: “cyber-shujaa” categories: [“cyber-shujaa”] title: “Dns” date: 2025-06-11 DNS (DOMAIN NAME SYSTEM
1.0 Introduction DNS, or Domain Name System, is like the internet’s phonebook. Every device online has an IP address a string of numbers like 104.26.10.229 used to identify it. But remembering numbers isn’t exactly user-friendly. That’s where DNS steps in. Instead of typing in a complex IP, you just type something simple like tryhackme.com, and DNS handles the rest, translating the name into the right IP address so your browser knows where to go.