IoT is a bit of a gimmick - it's just giving every device an IP address - however, it's a good way to brand, based on the "everything's connected" emotional association - it also opens up a wall of cybersecurity issues Radio towers can relay across _each other_ (for non-consumer purposes) by sending long-range microwaves. ISP: REDDIT COMMENT I don't work there anymore, but I used to work for a cable internet ISP. You weren't supposed to know this, but when customers complained about slow hardwired speeds, we'd show up and pretend to do something, knowing full well that the issue was our nodes being oversaturated everywhere. But we would never tell you. We eventually introduced something called "Power Boost" to mask the problem by skewing speed tests. Your first 5-20 seconds would be uncapped bandwidth and you would think you were getting a quality product when you weren't. NOTE: an SSH tunnel is a de facto VPN connection as soon as you include a proxy TeachYourselfCS: 1. Computer Networking: A Top-Down Approach (have PDF) [TeachYourselfCS1 alt] Introduction to Computer Networking (Lagunitas) [STANFORD COURSES ON THE LAGUNITA LEARNING PLATFORM | Stanford Online](https://online.stanford.edu/lagunita-learning-platform) 2. Wireshark labs [Wireshark Labs: Computer Networking - A Top Down Approach, 7th edition](https://www-net.cs.umass.edu/wireshark-labs/) 3. [TeachYourselfCS4] Make small networking projects, examples: - an HTTP server - a UDP-based chat app - a mini TCP stack [What happens if you write a TCP stack in Python?](https://jvns.ca/blog/2014/08/12/what-happens-if-you-write-a-tcp-stack-in-python/) - a proxy or load balancer - a distributed hash table ## Computer Certifications - cisco [Cisco Training](https://www.cisco.com/c/en/us/training-events/training-certifications/certifications.html) [CISCO CCNA](https://www.cisco.com/c/en/us/training-events/training-certifications/certifications/associate/ccna.html) [9Tut](https://www.9tut.com/) CCNA Certification Training [PacketLife.net](https://packetlife.net/) a place to record notes while studying for Cisco's CCNP certification. ## email [Thinking out loud about 2nd-gen email | Hacker News](https://news.ycombinator.com/item?id=40392709) [Thinking out loud about 2nd-gen Email – Gabriel Sieben](https://gabrielsieben.tech/2024/05/17/thinking-out-loud-2nd-gen-email/) [The curious case of the missing period | Hacker News](https://news.ycombinator.com/item?id=40432102) [The curious case of the missing period - Tjaart’s Substack](https://tjaart.substack.com/p/the-curious-case-of-the-missing-period) [Tell HN: After 10 years of experiments, custom username emails receive no spam | Hacker News](https://news.ycombinator.com/item?id=32470645) [DuckDuckGo email protection beta now open | Hacker News](https://news.ycombinator.com/item?id=32592671) [DuckDuckGo Email Protection Beta Now Open to All!](https://spreadprivacy.com/protect-your-inbox-with-duckduckgo-email-protection/) ## hardware L1 and L2 - UUID [New UUID Formats | Hacker News](https://news.ycombinator.com/item?id=31715119) [New UUID Formats](https://web.archive.org/web/20220521093511/https://www.ietf.org/id/draft-peabody-dispatch-new-uuid-format-03.html) [Type-safe, K-sortable, globally unique identifier inspired by Stripe IDs | Hacker News](https://news.ycombinator.com/item?id=36508811) [GitHub - jetpack-io/typeid: Type-safe, K-sortable, globally unique identifier inspired by Stripe IDs](https://github.com/jetpack-io/typeid) ## highly reliable information [ADSL works over wet string (2017) | Hacker News](https://news.ycombinator.com/item?id=40387318) [RevK®'s ramblings: It's official, ADSL works over wet string](https://www.revk.uk/2017/12/its-official-adsl-works-over-wet-string.html) ## home network [My Overkill Home Network | Hacker News](https://news.ycombinator.com/item?id=37081789) [My Overkill Home Network - Complete Details 2023](https://blog.networkprofile.org/my-home-network-complete-details-2023/) ## ip camera [How I changed my D-Link camera to a locally managed IP camera | Hacker News](https://news.ycombinator.com/item?id=36555507) [bmork/defogger: D-Link DCS-8000LH usage info and defogging tools](https://github.com/bmork/defogger) ## latency [How "latency numbers everybody should know" decreased from 1990-2020 | Hacker News](https://news.ycombinator.com/item?id=30546995) [Numbers Every Programmer Should Know By Year](https://web.archive.org/web/20240219030346/https://colin-scott.github.io/personal_website/research/interactive_latency.html) ## MAC address [I set up MAC address filtering but there are still unrecognized devices on my network. Is this normal? : AskNetsec](https://old.reddit.com/r/AskNetsec/comments/rnxpip/i_set_up_mac_address_filtering_but_there_are) ## NAS [Got a NAS? @ AskWoody](https://www.askwoody.com/2024/got-a-nas/) [The Cheapest NAS | Hacker News](https://news.ycombinator.com/item?id=40867709) [Alexander Gromnitsky's Blog :: 2024-07-01 :: The cheapest NAS](https://sigwait.org/~alex/blog/2024/07/01/the-cheapest-nas.html) [My NAS exposes itself over the internet without permission | Hacker News](https://news.ycombinator.com/item?id=26681984) [Terramaster NAS exposing itself with UPNP | Kevin Norman](https://kn100.me/terramaster-nas-exposing-itself-over-upnp/) [Ghost Pi - an unconventional backup solution : homelab](https://old.reddit.com/r/homelab/comments/t28hkf/ghost_pi_an_unconventional_backup_solution) [Michael Hoting](http://blog.cloud-client.info/?p=1365) Optimizing WD My Cloud NAS drive [Part 1](http://blog.cloud-client.info/?p=1365) [Part 2](http://blog.cloud-client.info/?p=1384) [SynoForum.com - The Unofficial Synology Forum](https://www.synoforum.com/) NAS Forum ## net send [Saying "sup" with `net send` | Hacker News](https://news.ycombinator.com/item?id=34157636) [sup | drew dot shoes](https://drew.shoes/posts/sup/) ## network cache [Using io_uring for network I/O | Hacker News](https://news.ycombinator.com/item?id=35547316) [Why you should use io_uring for network I/O | Red Hat Developer](https://developers.redhat.com/articles/2023/04/12/why-you-should-use-iouring-network-io) ## network card [Show HN: I made a discrete logic network card | Hacker News](https://news.ycombinator.com/item?id=39976640) [Discrete logic network card | Ivan's blog](https://qdiv.dev/posts/eth2/) ## network connection [The networkQuality tool on macOS | Hacker News](https://news.ycombinator.com/item?id=35936999) [Diving into a hidden macOS tool - networkQuality](https://cyberhost.uk/the-hidden-macos-speedtest-tool-networkquality/) ## network hardware mgmt [New Setup for 30 remote sites](https://old.reddit.com/r/networking/comments/16j7f5x/new_setup_for_30_remote_sites/) [CLI is better for administrating network gear and I'm tired of pretending it's not.](https://old.reddit.com/r/networking/comments/15zjz17/cli_is_better_for_administrating_network_gear_and/) [Why daisy chain PC to IP phone is alright while daisy chain multiple IP phones together are bad practice?](https://old.reddit.com/r/networking/comments/164aknx/why_daisy_chain_pc_to_ip_phone_is_alright_while/) ## networks [Just disconnect the internet | Hacker News](https://news.ycombinator.com/item?id=41125490) [2024-07-31 just disconnect the internet](https://computer.rip/2024-07-31-just-disconnect-the-internet.html) ## network switches [Show HN: We made a small and cheap network switch | Hacker News](https://news.ycombinator.com/item?id=40694254) [Networking Switch – MUREX Robotics Documentation](https://docs.murexrobotics.com/elec/boards/networking/switch) [LimeNET Micro 2.0 Developer Edition | Crowd Supply](https://www.crowdsupply.com/lime-micro/limenet-micro-2) ## non-internet networks [ELI5 - A friend of mine in IT is always talking about the "secondary" or "private" internet network that big name corporations operate on, outside of "normal internet" traffic. What is this network, and how is it accessed? : explainlikeimfive](https://old.reddit.com/r/explainlikeimfive/comments/13gs3mc/eli5_a_friend_of_mine_in_it_is_always_talking/) ## offline vs online [Offline is just online with extreme latency | Hacker News](https://news.ycombinator.com/item?id=35626015) [Offline Is Just Online With Extreme Latency - Jim Nielsen's Blog](https://blog.jim-nielsen.com/2023/offline-is-online-with-extreme-latency/) ## perf [Perf Is Not Enough | Hacker News](https://news.ycombinator.com/item?id=39662234) [Perf is not enough](https://motherduck.com/blog/perf-is-not-enough/) ## radio [No cellphone? No problem! The vintage radio enthusiasts prepping for disaster | California | The Guardian](https://www.theguardian.com/us-news/2023/may/27/ham-radio-emergency-natural-disaster-climate-crisis) [Someone stole a Jasper radio station's 200-foot tower, owner says | Hacker News](https://news.ycombinator.com/item?id=39302045) [Someone stole a Jasper radio station's 200-foot tower, owner says](https://www.al.com/news/2024/02/someone-stole-a-jasper-radio-stations-200-foot-tower-owner-says.html) [Inside a $1 radar motion sensor | Hacker News](https://news.ycombinator.com/item?id=40834349) [Inside a 1 dollar radar motion sensor | Maurycy's blog](https://10maurycy10.github.io/projects/motion_sensor_hacking/) [UV-K5 is the most hackable handheld ham radio yet | Hacker News](https://news.ycombinator.com/item?id=39850972) [The Most Hackable Handheld Ham Radio Yet - IEEE Spectrum](https://spectrum.ieee.org/quansheng-uv-k5-hacking) [Electrohypersensitivity - International Commission on the Biological Effects of Electromagnetic Fields](https://icbe-emf.org/activities/electrohypersensitivity/) [WebRadio](http://www.ac6v.com/swl1.htm#WEBRADIO) ## routers [What happened with ASUS routers this morning? | Hacker News](https://news.ycombinator.com/item?id=35983866) [Downtown Doug Brown - What happened with ASUS routers this morning?](https://www.downtowndougbrown.com/2023/05/what-happened-with-asus-routers-this-morning/) [WiFi Routers Used to Produce 3D Images of Humans | Hacker News](https://news.ycombinator.com/item?id=34480760) [WiFi Routers Used to Produce 3D Images of Humans](https://vpnoverview.com/news/wifi-routers-used-to-produce-3d-images-of-humans/) [Using a router to block a modem | Computerworld](https://www.computerworld.com/article/2887243/using-a-router-to-block-a-modem.html) [Free Software Gigabit Mini VPN Router (TPE-R1400) from ThinkPenguin, Inc. now FSF-certified to Respect Your Freedom - Free Software Foundation - Working together for free software](https://www.fsf.org/news/free-software-gigabit-mini-vpn-router-tpe-r1400-from-thinkpenguin-inc-now-fsf-certified-to-respect-your-freedom) [SNBForums](https://www.snbforums.com/) [A detailed look at the router provided by my ISP | Hacker News](https://news.ycombinator.com/item?id=22683422) [Taking Back What Is Already Yours: Router Wars Episode I](https://psaux.io/2020/03/01/Taking-Back-What-Is-Already-Yours-Router-Wars-Episode-I/) ## routing [Vivek Gite](https://www.cyberciti.biz/faq/linux-route-add/) (2013) Linux route Add Command Examples ## slow internet [Engineering for Slow Internet | Hacker News](https://news.ycombinator.com/item?id=40531100) [Engineering for Slow Internet](https://brr.fyi/posts/engineering-for-slow-internet) [How web bloat impacts users with slow devices | Hacker News](https://news.ycombinator.com/item?id=39729057) [How web bloat impacts users with slow devices](https://danluu.com/slow-device/) [Ask HN: Internet magically gets faster when opening speedtest? | Hacker News](https://news.ycombinator.com/item?id=31062799) ## WAN [Ask HN: Is it just me or is 5G strictly worse than LTE? | Hacker News](https://news.ycombinator.com/item?id=34564590) [Colorado repealed law limiting municipal internet | Hacker News](https://news.ycombinator.com/item?id=36075801) [Colorado repealed law limiting municipal internet, making it easier for towns to build](https://coloradosun.com/2023/05/24/municipal-internet-sb-152-repealed-colorado/) [Why are antennas popping up over the Salt Lake City foothills? | Hacker News](https://news.ycombinator.com/item?id=34266158) [Why are antennas popping up all over the foothills? Salt Lake City seeks to solve mystery](https://ksltv.com/516749/why-are-antennas-popping-up-all-over-the-foothills-salt-lake-city-seeks-to-solve-mystery/) [As I am currently in a war zone, I don't have many options for cabling | Hacker News](https://news.ycombinator.com/item?id=35730074) [Using clothesline steel core wire rope for AC and DC - Electrical Engineering Stack Exchange](https://electronics.stackexchange.com/questions/664502/using-clothesline-steel-core-wire-rope-for-ac-and-dc) [FCC Officially Raises Minimum Broadband Metric from 25Mbps to 100Mbps | Hacker News](https://news.ycombinator.com/item?id=39708957) [FCC Officially Raises Minimum Broadband Metric From 25Mbps to 100Mbps | PCMag](https://www.pcmag.com/news/fcc-officially-raises-minimum-broadband-metric-from-25mbps-to-100mbps) [How photos were transmitted by wire in the 1930s | Hacker News](https://news.ycombinator.com/item?id=39690363) [How Photos Were Transmitted by Wire in the 1930s](https://kottke.org/24/03/how-photos-were-transmitted-by-wire-in-the-1930s) [What the damaged Svalbard cable looked like | Hacker News](https://news.ycombinator.com/item?id=40484591) [This is what the damaged Svalbard cable looked like when it came up from the depths – NRK Troms og Finnmark](https://www.nrk.no/tromsogfinnmark/this-is-what-the-damaged-svalbard-cable-looked-like-when-it-came-up-from-the-depths-1.16895904) ## wireless networks [Resolving an unusual WiFi issue | Hacker News](https://news.ycombinator.com/item?id=32524702) [Resolving an unusual wifi issue • Ando's thoughts](https://blog.ando.fyi/posts/diagnosing-an-unsual-wifi-issue/) [does anyone know what technology this door tag/keycard uses, i would like to make a copy for reserve](https://old.reddit.com/r/hacking/comments/160x297/does_anyone_know_what_technology_this_door/) [Ask HN: What's with the DIY state of the art long-range Wi-Fi? | Hacker News](https://news.ycombinator.com/item?id=34567704) [Wireless is a trap (2020) | Hacker News](https://news.ycombinator.com/item?id=31358855) [Wireless is a trap | benkuhn.net](https://www.benkuhn.net/wireless/) [The 5GHz "Problem" for Wi-Fi Networks: DFS (2018) | Hacker News](https://news.ycombinator.com/item?id=34134905) [The 5GHz "Problem" For Wi-Fi Networks: DFS](https://wifinigel.blogspot.com/2018/05/the-5ghz-problem-for-wi-fi-networks-dfs.html) ## cyclic redundancy check [Cyclic redundancy check - Wikipedia](https://en.wikipedia.org/wiki/Cyclic_redundancy_check) ## LAN [Christophe Vanlancker](https://carroarmato0.wordpress.com/2010/06/20/how-to-bridge-the-lan-ports-of-your-belgacom-bbox2/) (2010) How to Bridge the Lan ports of your Belgacom BBox2 ## localhost [What is Localhost? Localhost Explained for Beginners](https://www.hostinger.com/tutorials/what-is-localhost) ## modem [Talk to your modem | Computerworld](https://www.computerworld.com/article/2880475/talk-to-your-modem.html) ## net+ Recommended from CompTIA sub: - Udemy - Mike Myers' book + course - Udemy - Dion practice test (well-regarded!) - YouTube - Professor Messer - CompTIA CertMaster - Esoterica - Ports folder in Notes [Master List: I Compiled and Ranked Every Major Studying Resource for A+, Network+, and Security+ Here! : CompTIA](https://old.reddit.com/r/CompTIA/comments/i7hx4t/master_list_i_compiled_and_ranked_every_major/) [List of Common Network Port Numbers](https://www.utilizewindows.com/list-of-common-network-port-numbers/) - Objectives: Learn common port numbers and services, and which transport protocol they use. Prerequisites: you have to know about TCP/IP protocols in general. Key terms: port numbers, network, commo… [Network+ - Certpages](https://certpages.com/Comptia/Network+) Resources For All Your IT Certifications [CompTIA Network+ Flashcards](https://cram.com/flashcards/comptia-network--7228590) Study Flashcards On CompTIA Network+ at Cram.com. Quickly memorize the terms, phrases and much more. Cram.com makes it easy to get the grade you want! [CompTIA Practice Exams](https://examcompass.com/) Online CompTIA practice tests mapping to the latest exam domains. CompTIA A+ 220-1001 / 220-1002, CompTIA Network+ N10-007, CompTIA Security+ SY0-501. [Flashcard Database - Configure Study Session | Flashcard Machine](https://flashcardmachine.com/machine?source=pub.pub_details&topic_id=141252) - Create interactive flashcards for studying, entirely web based. You can share with your classmates, or teachers can make the flash cards for the entire class. [CompTIA Network+ Study Guide - Free - howtonetwork.com](https://www.howtonetwork.com/comptia-network-study-guide-free/) ## phone systems [How to find a lost phone in a no-cell-coverage camping site? | Hacker News](https://news.ycombinator.com/item?id=38018917) [Approaching unconventional problems | Manas.Tech](https://manas.tech/blog/2023/10/25/approaching-unconventional-problems/) ## routers [What they don't teach you about sockets | Hacker News](https://news.ycombinator.com/item?id=32225532) [What they don't teach you about sockets](https://macoy.me/blog/programming/Sockets) [Hidden Networks in TP-Link Routers | Hacker News](https://news.ycombinator.com/item?id=29641868) [Hidden Networks in TP-Link Routers](https://jahed.dev/2021/12/19/hidden-networks-in-tp-link-routers/) ## start an ISP [start your own isp](https://startyourownisp.com/) ## WAN [Indefeasible rights of use - Wikipedia](https://en.wikipedia.org/wiki/Indefeasible_rights_of_use) [Internet guerrillas: Inside the DIY broadband revolution | Digital Trends](https://www.digitaltrends.com/computing/nyc-mesh-guerrilla-internet-network) ## Wireshark [Learn Wireshark - Computer Networking Tutorial](https://www.freecodecamp.org/news/learn-wireshark-computer-networking) [From Oscilloscope to Wireshark: A UDP Story | Hacker News](https://news.ycombinator.com/item?id=32428032) [From Oscilloscope to Wireshark - A UDP Story](https://www.mattkeeter.com/blog/2022-08-11-udp/) [Wireshark Is 25: The email that started it all and lessons learned along the way | Hacker News](https://news.ycombinator.com/item?id=36734214) [Wireshark Is 25: The email that started it all and the lessons learned along the way | Sniff free or die](https://blog.wireshark.org/2023/07/wireshark-is-25/)