Introduction to Networking and Network Security

​Most of us have several devices connected to the Internet in our Ham Shacks.  A computer, a digital mode hotspot, and a Raspberry Pi are several common items one would find.  We may not give much thought to these devices because affordable commercially available equipment make it a breeze to connect devices to each other and the Internet.  But, have you ever stopped to think whether your hotspot should have network access to the computer you do your taxes on? This week Nick KN6NK and Smitty KR6ZY join us to give an introduction to basic networking topics and a primer on basic but powerful practices to secure our networks in the ham shack and beyond.

Nick KN6NK - https://twitter.com/explodinglemur?lang=en
Smitty KR6ZY - https://twitter.com/smittyhalibut

Our Website - http://www.hamradioworkbench.com/
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Closed-loop spindle speed control (Arduino PID controller) for my 3040 router (they’re all over eBay)

Watching developments on uBITx harmonics/spurs and related fixes
Retro DOS gaming on real hardware instead of DOSBox!  Thin client and sound card

Proposed ARES standard headset interface:
http://www.sloecc.org/headsets/proposal_ares_standard_headset.pdf

EEVBLOG Raspberry PI PoE Hat Issues - https://www.eevblog.com/2018/09/20/eevblog-1122-raspberry-pi-3-poe-hat-fail-investigation/

Raspberry Pi PoE Hat Issues Forum Post - https://www.raspberrypi.org/forums/viewtopic.php?t=220984

Raspberry Pi PoE Hat Issues - The Register article

The 7-Layer OSI Model - https://www.webopedia.com/quick_ref/OSI_Layers.asp

802.11 WiFi Standards - https://en.wikipedia.org/wiki/IEEE_802.11

Dynamic Host Configuration Protocol (DHCP) - https://en.wikipedia.org/wiki/Dynamic_Host_Configuration_Protocol

Network Address Translation (NAT) - https://en.wikipedia.org/wiki/Network_address_translation

Stateful vs Stateless Firewalls - https://www.lanner-america.com/blog/stateless-vs-stateful-packet-filtering-firewalls-better/

Virtual Private Network (VPN) - https://en.wikipedia.org/wiki/Virtual_private_network

Demilitarized Zone (DMZ) - https://en.wikipedia.org/wiki/DMZ_(computing)

Domain Name System - https://en.wikipedia.org/wiki/Domain_Name_System

Dynamic Domain Name System (DDNS) - https://en.wikipedia.org/wiki/Dynamic_DNS

COTS wifi+router with third-party firmware - Tomato / dd-wrt / OpenWRT

Overview of basic commercial wifi+router security - https://lifehacker.com/how-to-make-your-wifi-router-as-secure-as-possible-1827695547

Wired Network sniffing - http://www.halibut.com/~mark/EtherSniff-v1.0.pdf
Wifi security talk

Virtual Local Area Network (VLAN) - https://en.wikipedia.org/wiki/Virtual_LAN

​Ubiquiti Unifi Networking Gear - https://unifi-sdn.ubnt.com/