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bill

Bill is an experienced IT and network professional with a passion for building reliable, secure, and scalable infrastructure for businesses and home labs alike. As the founder and voice behind **Relay Rack 1**, Bill focuses on practical, real-world networking solutions—bridging the gap between enterprise-grade technology and approachable, hands-on guidance.With years of experience supporting and designing networks across multiple industries, Bill specializes in routing and switching, network security, virtualization, and systems administration. His background includes extensive work with technologies such as Cisco, pfSense, Proxmox, VLAN segmentation, VPNs, firewalls, and Linux-based servers, along with modern cloud and automation tools.At Relay Rack 1, Bill shares in-depth tutorials, troubleshooting guides, and best practices aimed at: - Network engineers and sysadmins - Small businesses and MSPs - IT professionals building labs or production environments - Technology enthusiasts who want to learn *how things really work*What sets Bill apart is his focus on **clarity and usability**. Rather than abstract theory, his content emphasizes step-by-step instructions, diagrams, and real configurations that readers can immediately apply. Whether it’s optimizing a Proxmox cluster, hardening a firewall, configuring terminal workflows, or designing resilient networks, his goal is always the same: **make complex systems understandable and dependable**.When he’s not working on networks or writing for Relay Rack 1, Bill enjoys experimenting with new infrastructure tools, refining automation workflows, and continuously learning in the ever-evolving world of IT.**Relay Rack 1** exists to document that journey—and to help others build smarter, stronger networks along the way.

LAN vs WAN vs Internet (Explained Simply)

January 11, 2026January 4, 2026 by bill
Diagram illustrating the difference between a LAN, a WAN, and the Internet in a basic network layout

Learn the difference between LAN, WAN, and the Internet with simple diagrams in this beginner-friendly network engineering guide.

Categories Part 4: LAN vs WAN vs Internet (Explained Simply) Tags internet, lan, wan Leave a comment

IP Addresses and Subnets (Made Simple)

January 11, 2026January 3, 2026 by bill
Diagram illustrating IP addresses and subnets showing how devices are grouped and identified on a network

Learn what IP addresses and subnets are and how they work with simple diagrams in this beginner-friendly network engineering guide.

Categories Part 3: IP Addresses and Subnets (Made Simple) Tags a beginners guid series Leave a comment

Modems Routers and Switches Explained

January 11, 2026January 2, 2026 by bill
Diagram showing a modem, router, and switch and how they work together in a basic network setup

Learn the difference between modems, routers, and switches in this beginner-friendly guide to network engineering basics.

Categories Part 2: Modems, Routers, and Switches Explained Tags modems, Network Engineering Basics, routers, switches 1 Comment
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📂 Archives

  • January 2026
  • December 2025


🏷️ Categories

  • A Beginner’s Guide Series
  • Artificial Intelligence
  • Cryptography
  • Firewalls
  • Network Engineering Basics
  • Part 1: What Is a Network?
  • Part 10: Entry-Level Network Engineering Tools
  • Part 2: Modems, Routers, and Switches Explained
  • Part 3: IP Addresses and Subnets (Made Simple)
  • Part 4: LAN vs WAN vs Internet (Explained Simply)
  • Part 5: What Is a Firewall? (Explained Simply)
  • Part 6: What is DNS and Why It Matters
  • Part 7: What Is DHCP? (And Why Networks Depend on It)
  • Part 8: Wired vs Wireless Networking (Explained Simply)
  • Part 9: Basic Network Security Concepts (Explained Simply)
  • ssh
  • SSH Keys
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📰 Recent Posts

  • Entry-Level Network Engineering Tools
  • Basic Network Security Concepts (Explained Simply)
  • Wired vs Wireless Networking (Explained Simply)
  • What Is DHCP? (And Why Networks Depend on It)
  • What Is DNS and Why It Matters
  • What Is a Firewall? (Explained Simply)
  • LAN vs WAN vs Internet (Explained Simply)
  • IP Addresses and Subnets (Made Simple)
  • Modems Routers and Switches Explained
  • What Is a Network?
  • Network Engineering Basics
  • Public and Private Keys Explained
  • What Is a Firewall?
  • What Are Modems, Routers, and Switches?
  • Beginner SSH Key Setup Guide
  • What Is SSH and How to Use It Securely
  • How AI Is Changing Network Engineering
  • Advanced iTerm2 Configuration
  • Beginner’s Guide to iTerm2
  • iTerm2 Explained
  • Terminal Emulators Explained


👥💬 Recent Comments

  1. Eric on Modems Routers and Switches Explained

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One response to “Modems Routers and Switches Explained”

  1. Eric Avatar
    Eric
    January 4, 2026

    Thanks, this clear up some confusion I had. I thought they were all one device.

    Reply

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