Oct 22, 2025 · 3 min read · Introduction Telnet, c’est un peu le dinosaure des connexions réseau.Pendant longtemps, il a été l’outil le plus simple pour prendre la main sur un routeur ou un serveur à distance.Mais aujourd’hui, il n’a plus sa place. Pas en 2025. Pourquoi ? Parce...
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Aug 5, 2025 · 3 min read · Let’s be honest: I didn’t choose network troubleshooting, it kind of chose me. At work, it was just part of my job description, and “no” wasn’t really an option. Back then, whenever a network issue popped up, I quietly hoped someone else would grab i...
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Jul 20, 2025 · 6 min read · DNS: Remembering Addresses The Domain Name System (DNS) connects domain names (like example.com) to IP addresses, so users don't have to remember numbers. Layer: In the OSI model, DNS operates at Layer 7 (Application Layer). Ports: UDP port 53 is use...
Join discussionJul 18, 2025 · 10 min read · Introduction Networking concepts are the fundamental ideas and rules that explain how computers and devices connect and communicate with each other. They address everything from the organization and management of networks to the flow of data. OSI Mod...
Join discussionJun 26, 2025 · 2 min read · Today’s DevOps journey focused on managing packages and performing network diagnostics on a Debian-based system. I worked with .deb packages using dpkg, handled dependency-aware installs with apt, managed users, and explored essential networking tool...
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Mar 3, 2025 · 7 min read · Advance Package Management In this lesson, we will learn about the packages installation using dnf and rpm command. And will perform the activities like- Installation of package, deletion, updation, checking all the details of a package (when it got ...
Join discussionDec 16, 2024 · 3 min read · At first you have to connect VPN or starting pwn box on HTB platform to connect their local lab. 💡 If you not familiar with connect to HTB via OpenVPN you can following this instruction Connect HTB VPN using OpenVPN Walkthrough After connect to ...
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Nov 14, 2024 · 4 min read · Linux offers powerful tools for system administration, shell scripting, and text processing, making it a versatile operating system for both developers and system administrators. This blog will guide you through advanced Linux commands and scripting ...
Join discussionOct 25, 2024 · 2 min read · In this article, I will write a write-up for Networking Concepts that covers OSI Model, TCP/IP Model, IP Addresses and Subnets, UDP and TCP, Encapsulation, and Telnet. Which layer is responsible for connecting one application to another? Layer 4 Wh...
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Apr 12, 2024 · 1 min read · Today we will see the steps to install license using telnet. Login to telnet telnet localhost 5<instance no.>08 It asks for your username and password. Give your java administrator username and password. Now type the below command to add the licensi...
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