A structured and beginner-friendly guide to the fundamentals of computer networking covering everything from IP addressing, subnetting, routing, and protocols to network security and troubleshooting.

Master essential networking concepts and skills with hands-on labs. This course covers network fundamentals, implementation, operations, security, and troubleshooting, preparing you for the CompTIA Network+ certification (N10-009).

Framework for simulating traffic over firewall rulesets - for troubleshooting and automated CI regression-tests

A semantic tool that leverages context to understand your network

A simple script that brings together common network troubleshooting commands in one place, organized in a menu format. Run it with or without admin mode to quickly resolve network issues.

This is the Powershell version of my CMD networking tool.

Repo for Cisco DNA Center ITSM Integration (ServiceNow) Custom Workflows

This cmd networking tool is a compilation of networking commands in an easily accessible environment.

A local, open-source demo of 'Talk to Your Network' using Ollama LLMs and RAG on synthetic telecom logs.

The network technician's toolkit for anything network troubleshooting.

Scalable Network Troubleshooting using Napalm

Universal network troubleshooting skill for AI coding agents: DNS, proxy, SSL, package managers, Docker, Git, and China/GFW workflows.

Small utility to download SSL certificate chain from remote server. Can override certificate validation (useful for debugging validation issues in clients) and port number, which defaults to 443 for HTTPS.

Network configuration and troubleshooting exercises focusing on TCP/IP addressing, subnetting, and routing. 10 progressive levels covering subnet masks, CIDR notation, network segmentation, and routing tables. Part of 42 School curriculum.

A comprehensive guide to setting up and managing Raspberry Pi, Ray Clusters, and distributed AI workloads. Includes network troubleshooting, IP configuration, Ray Dashboard, and Python script execution for scalable AI applications.

NetNoise is a network monitoring and troubleshooting utility that performs connectivity testing across multiple protocols.

Enterprise Cisco network case study featuring VLAN segmentation, inter-VLAN routing, DHCP relay, ACL security policies, and real-world troubleshooting diagnostics using Cisco Packet Tracer.

Windows network troubleshooting toolkit for ping monitoring, speed tests, adapter diagnostics, LAN throughput, route health, Wi-Fi checks, and reporting.

A host monitoring is a great tool to help monitor a Local Area Network (LAN). It works by sending an ICMP echo request to the network host. It automates the network troubleshooting process and makes it more efficient for a user.

In this course, you will learn how to use Wireshark to capture and analyze network traffic. You will learn how to install Wireshark, capture packets, and analyze them. You will also learn how to use Wireshark to troubleshoot network issues, analyze network traffic, and secure your network.