--- title: "Narayan Joshi (@NJ12090) | Hashnode" description: "CyberSecurity Associate at Sattrix Information Security | Top 1% CyberSecurity Learner on TryHackMe | ArcSight | Splunk | NewEvol" url: "https://hashnode.com/@NJ12090" --- @NJ12090 # Narayan Joshi @NJ12090 · Maharashtra, India · Joined July 2024 CyberSecurity Associate at Sattrix Information Security | Top 1% CyberSecurity Learner on TryHackMe | ArcSight | Splunk | NewEvol [Website](https://njoshiportfolio.netlify.app/) ### [Day 6 - Unlocking Networking Essentials: Key Concepts and Technologies](https://blog.origin7.in/day-6?utm_source=hashnode&utm_medium=feed) In this blog, we’ll explore key networking topics that are essential to building a strong foundation in networking. These topics will help you understand the technologies behind modern networks and guide you in implementing secure, scalable systems. ... 7 min read · [blog.origin7.in](https://blog.origin7.in/day-6?utm_source=hashnode&utm_medium=feed) [Apr 24, 2025](https://hashnode.com/posts/day-6/680a787a79de230febe135b0) ### [📶Day 5 : Understanding Wi-Fi Wireless LAN Concepts and Cabling: A Comprehensive Guide](https://blog.origin7.in/day-5?utm_source=hashnode&utm_medium=feed) 1\. Wi-Fi Wireless LAN Concepts 1.1 Infrastructure Mode Infrastructure Mode is a networking framework where devices connect through a centralized access point (AP), such as a wireless router. It allows wireless devices to communicate with each other a... 5 min read · [blog.origin7.in](https://blog.origin7.in/day-5?utm_source=hashnode&utm_medium=feed) [Apr 20, 2025](https://hashnode.com/posts/day-5/68053019cf529e6271c1abb1) ### [🧠 Day 4: Routes, Ports, Protocols & Switchcraft – Diving Deeper into Networking](https://blog.origin7.in/network-4?utm_source=hashnode&utm_medium=feed) Welcome back, tech enthusiasts! 🚀Day 4 of my networking expedition took me deep into the heart of what makes our digital world run smoothly: routing, well-known ports, protocols, and some serious switch magic like VLANs, STP, and Port Mirroring. Let... 4 min read · [blog.origin7.in](https://blog.origin7.in/network-4?utm_source=hashnode&utm_medium=feed) [Apr 13, 2025](https://hashnode.com/posts/network-4/67fbf627642fa4f982bc04fd) ### [📘 Network+ Day 3 – ARP, Subnetting, NAT & Assigning IPs Made Simple](https://blog.origin7.in/network-day-3?utm_source=hashnode&utm_medium=feed) Welcome to Day 3 of the Network+ Journey! Today, we’re diving into some really important (but often confusing) networking topics — ARP, IP Subnetting, NAT, and how to assign IPv4 addresses to routers and hosts. Let’s simplify the techy stuff! 🧠 ARP... 4 min read · [blog.origin7.in](https://blog.origin7.in/network-day-3?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/network-day-3/67fa8c190b40448dfc53d0f9) [Apr 12, 2025](https://hashnode.com/posts/network-day-3/67fa8c190b40448dfc53d0f9) ### [🔒Network+ Day 2 of Cybersecurity Learning – Demystifying IDS/IPS, DHCP, DNS, OSI, and More!](https://blog.origin7.in/network-day-2?utm_source=hashnode&utm_medium=feed) Welcome to Day 2 of my cybersecurity journey! Today was an absolute firehose of concepts—but stick with me, because by the end of this blog, you’ll feel like a mini network guru 😎. I covered everything from how your PC talks to the internet, to how ... 4 min read · [blog.origin7.in](https://blog.origin7.in/network-day-2?utm_source=hashnode&utm_medium=feed) [Apr 9, 2025](https://hashnode.com/posts/network-day-2/67f6aec709730aa376ed072b)