--- title: "Oluchi June Ifeanyi (@TheOluchiJune) | Hashnode" description: "Technical Writer | Cybersecurity Intern. Read the latest articles by Oluchi June Ifeanyi on Hashnode." url: "https://hashnode.com/@TheOluchiJune" --- @TheOluchiJune # Oluchi June Ifeanyi @TheOluchiJune · Lagos, Nigeria · Joined May 2021 Technical Writer | Cybersecurity Intern ### [Unveiling the Mystery of Network Mapper (NMAP): A Beginner's Guide to Network Scanning and Security Auditing](https://theoluchijune.hashnode.dev/unveiling-the-mystery-of-network-mapper-nmap-a-beginners-guide-to-network-scanning-and-security-auditing?utm_source=hashnode&utm_medium=feed) Network Mapper, commonly known as NMAP, is an open-source tool used for network exploration and security auditing. It was first released in September 1997 and has since then become a popular and widely used tool among security professionals and netwo... 3 min read · [theoluchijune.hashnode.dev](https://theoluchijune.hashnode.dev/unveiling-the-mystery-of-network-mapper-nmap-a-beginners-guide-to-network-scanning-and-security-auditing?utm_source=hashnode&utm_medium=feed) [Mar 12, 2023](https://hashnode.com/posts/unveiling-the-mystery-of-network-mapper-nmap-a-beginners-guide-to-network-scanning-and-security-auditing/640db4cacf10a6554db6af44) ### [My SQL Month](https://theoluchijune.hashnode.dev/my-sql-month?utm_source=hashnode&utm_medium=feed) At the first team meeting of August, 2021, the WellaHealth Technologies Engineering Team Lead, Bayo, advised everyone on the team to pick up a skill to learn for the month. This learning process would not replace the tasks we were each handling for t... 3 min read · [theoluchijune.hashnode.dev](https://theoluchijune.hashnode.dev/my-sql-month?utm_source=hashnode&utm_medium=feed) [Sep 16, 2021](https://hashnode.com/posts/my-sql-month/614358e62d0e2479882a25ec) ### [Understanding C# Variables](https://theoluchijune.hashnode.dev/understanding-c-variables?utm_source=hashnode&utm_medium=feed) Understanding variables and how they work is very essential for every coder as variables are basic concepts which you see and make use of at any stage in coding. In this article, you would know what C# variables are, the various data types that exist... 4 min read · [theoluchijune.hashnode.dev](https://theoluchijune.hashnode.dev/understanding-c-variables?utm_source=hashnode&utm_medium=feed) [Sep 16, 2021](https://hashnode.com/posts/understanding-c-variables/614356042d0e2479882a255c) ### [C#: A Beginner‘s Best Choice](https://theoluchijune.hashnode.dev/c-a-beginners-best-choice?utm_source=hashnode&utm_medium=feed) Want to start a career in software development with no prior knowledge of tech or computers? Need guidance on the best programming language to learn which puts you on a successful career path? In this article, you would understand what C# is, what th... 3 min read · [theoluchijune.hashnode.dev](https://theoluchijune.hashnode.dev/c-a-beginners-best-choice?utm_source=hashnode&utm_medium=feed) [Sep 16, 2021](https://hashnode.com/posts/c-a-beginners-best-choice/6143344cdbe60379639afd9d) ### [How I Started My Tech Journey](https://theoluchijune.hashnode.dev/how-i-started-my-tech-journey?utm_source=hashnode&utm_medium=feed) I am currently a backend engineer with less than a year experience in my field. In this article I would share a couple of reasons why I delved into the tech industry and how my journey has been. When the Covid-19 pandemic hit Nigeria, I started volu... 3 min read · [theoluchijune.hashnode.dev](https://theoluchijune.hashnode.dev/how-i-started-my-tech-journey?utm_source=hashnode&utm_medium=feed) [Jun 19, 2021](https://hashnode.com/posts/how-i-started-my-tech-journey/60ce301c37952431a1712a25)