Category: Computer Networks

Below is a 30–40 minute SMTP lesson plan suitable for college-level networking courses . It includes: purpose, tools, installations, commands, protocol operations, Telnet interaction, data formats, and references to typical Wireshark visuals (without reproducing copyrighted images). 📘 SMTP Lesson Plan (30–40 Minutes) Topic: Simple Mail Transfer Protocol (SMTP)Audience: Networking / IT StudentsGoal: Understand SMTP purpose, …

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How to Run the GNS3 VM Inside Oracle VirtualBox Here is a clean, fully rewritten, plagiarism-free, blog-ready version that covers both the step-by-step tutorial and the architecture diagram explanation, merged into one smooth article. You can publish this as-is. How to Run the GNS3 VM Inside Oracle VirtualBox A Complete Guide GNS3 becomes far more …

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Polished: How to Find and Import Cisco Router Images (BIN/IMAGE) Into GNS3 (By ChatGPT) To use classic Cisco routers such as the 3725 in your GNS3 labs, you’ll need the correct IOS image files. This guide explains where to find them, where to store them, and how to import them properly into GNS3. Where to …

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Here is a polished, blog-ready version — fully rewritten, original, plagiarism-free, and safe for publishing. How to Configure VirtualBox Network Adapters for the GNS3 VM (with GNS3 GUI) Setting up the GNS3 VM correctly inside VirtualBox is essential if you want the GNS3 GUI on your computer to communicate smoothly with the backend VM. This …

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Here is a polished, blog-ready rewrite — copyright-free, plagiarism-free, and integrity-safe. How to Configure Network Adapters for the GNS3 VM in VirtualBox When running the GNS3 VM inside VirtualBox, proper network adapter configuration is essential. The GNS3 GUI on your host system relies on these adapters to communicate with the VM, manage devices, and build …

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Polished For Blog Post: What ARP Actually Does During a Ping. Why ARP Shows a Hostname Like private_66 When You Ping a Device Here is a clean, polished, blog-ready rewrite — copyright-free, plagiarism-free, and integrity-safe. (ChatGPT) Why ARP Shows a Hostname Like private_66 When You Ping a Device When capturing network traffic, it’s common to …

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How to assign a Static IP address to an Ubuntu Box sudo nano /etc/netplan/02-network-manager.yaml The file name can be different sudo nano /etc/netplan/02-network-manager-all.yaml Configure as below: #Run: sudo netplan apply Check if you have an IP ip address show

By ChatGPT as is: Below is a clear step-by-step guide to using Let’s Encrypt (free SSL) with Apache2.This assumes you already have a domain pointing to your server’s public IP. ✅ Using Let’s Encrypt With Apache2 (HTTPS Setup) Method: Certbot (recommended) Let’s Encrypt issues FREE SSL certificates, automated and trusted by browsers. 1. Install Certbot …

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Using SSL from Your Hosting Provider Instead If your hosting provider offers SSL, the process becomes simpler because: …are often automated within cPanel, Plesk, or a custom dashboard. However, the overall workflow remains the same: Buy SSL from Hosting Provider Below is a clean, correct, step-by-step overview of how to use SSL/TLS on a website—even …

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How to Convert an HTTP Website to HTTPS Using a Third-Party SSL Certificate (Apache 2 Guide) Securing your website with HTTPS is essential for trust, SEO, and protecting user data. Many hosting providers sell SSL certificates, but you may prefer purchasing SSL from a third-party Certificate Authority (CA). This guide walks through the full process …

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