Meetups/Infra/2024-10-21

(Preamble:

   = Meetup - Infra =
   https://www.noisebridge.net/wiki/Meetups/Infra
   https://www.noisebridge.net/wiki/Meetups/Infra/2024-..-.. )

2024-10-21m Meetups/Infra

Meetups / Infra | Template

V · T · E

(TODO summary)

Introductions

• [name] - [background]. [goals for meetup, or interests to explore]
• Loren - unemployed, enjoy having these conversations, get help with noisebridge physical infrastructure and hosting. Could talk about QUIC relative slowness &
• Greg - currently unemployed programmer, running a home lab
• Barton - chain of events brining me here tongiht, intricate. Building infrastructure for cloud vendors. Now local first computing.
• Bjork (?) - infrastructure professionally for a long time, bored today had time to show up
• Wolf - host much for personal use, interested in understandable, not over-complicated infrastructure
• Vie - lots of self-hosting & torrenting stuff before 18 for obvious reasons. Working on graphdb for personal infra
• Jess - working on hosting ai tools, how customers can access
• Jake - backend for work, games on the side, come here for interesting conversations

Lesson or Demo

• Read aloud: clarify for meetup. We are taking notes in a riseup pad (or I am--help appreciated, and links). We have meeting notes posted to the wiki. noisebridge.net, search Infra, or Meetups/Infra. (the Infrastructure page has a disambiguation link.)
• Shell, web services, self-hosting, networking!

• Jess - hosting ai models
  • loom, on the web.
    • hosting on firebase & stripe. stripe not working now. Curious about architecture. SQL-no-sql thing.

Firebase -- concern about security failure modes.

https://alexplescan.com/posts/2024/08/10/wezterm/ - blog post on wezterm settings

• demo and discussion of web loom.

• Discussion of https://search.feep.dev

recent addition of MediaWiki ingestion feature

WARC, scraping

• Big complicated database table story.

Questions, Discussion, or Coworking

• [Issue]

For next time

Readings & Exercises

• Readings
• Exercises

Join online

• Try it yourself!
  • Join libera.chat #nb-meetup-infra

https://www.noisebridge.net/wiki/Meetups/Infra

(Preamble:

   = Meetup - Infra =
   https://www.noisebridge.net/wiki/Meetups/Infra
   https://www.noisebridge.net/wiki/Meetups/Infra/2024-..-.. )

2024-10-14 m Meetups/Infra

Meetups / Infra | Template

V · T · E

(TODO summary)

Introductions

• [name] - [background]. [goals for meetup, or interests to explore]

• Kevin - do IT sysadmin work. I've been working on self-hosting, containerizing in home network, CI/CD. It was not DNS when: only the ubuntu public update server was not working, clearly only this one host. It turns out: another sysadmin had enabled snort, pfSense, enabled at noon. Blocked as a malicious site for servers and individuals.
• Jake - do backend at work, video games development on the side. No DNS/not-DNS stories, new to it.
• Mike - backend software engineer, long time since that question has come up. Putting kubernetes & calico on a new 24-core system, plus spare hardware later.
• Loren -
• Elan - Spraypaint, Spacebridge, Wiki

Lesson or Demo

• Read aloud: clarify for meetup. We are taking notes in a riseup pad (or I am--help appreciated, and links). We have meeting notes posted to the wiki. noisebridge.net, search Infra, or Meetups/Infra. (the Infrastructure page has a disambiguation link.)
• Shell, web services, self-hosting, networking!

• Satellite routing
• QUIC
• LoRaWAN
• ESP-NOW

• Motivating & binding these.

L1 - phy - wires, radio, optics. P2P, or bus / broadcast domain. L2 - net - ethernet, wifi. Hosts directly talking to each other, or connected by switches, L3 - inter-network internet - IP - BGP - AS (ASNs). L4 - services -- ports: ssh:22, smtp:21, http:80, https:443

https://blog.cloudflare.com/the-road-to-quic/ Nginx, caddy.

TCP-HTTP. HTTP3 QUIC.

Other considerations. TCP -- congestion control, slow open, shared/independent connections, head of line blocking, loss as congestion signal.

https://developers.slashdot.org/story/24/02/16/164217/nginx-core-developer-quits-project-says-he-no-longer-sees-nginx-as-free-and-open-source-project-for-the-public-good

• Satellite routing -- https://www.ietf.org/archive/id/draft-jones-tsvwg-transport-for-satellite-02.html

Enhancing Transport Protocols over Satellite Networks https://www.irtf.org/anrp/IETF109-ANRP-Bhattacherjee.pdf

$ traceroute [1.1.1.1|8.8.8.8|9.9.9.9]

• QUIC, layer-by-layer review

LoRa & LoRaWAN

• https://www.thethingsnetwork.org/docs/lorawan/what-is-lorawan/

LoRaWAN is a Media Access Control (MAC) layer protocol built on top of LoRa modulation. It is a software layer which defines how devices use the LoRa hardware, for example when they transmit, and the format of messages.

• https://www.baranidesign.com/faq-articles/2019/4/23/lorawan-usa-frequencies-channels-and-sub-bands-for-iot-devices

Git self-hosting

• GitLab - not free beyond repo hosting
• Gitea - just added some CI/CD offering

Tailscale/Tailnet

https://tailscale.com/kb/1136/tailnet

https://gfblip.appspot.com/ https://6-dot-gfblip.appspot.com/

https://httpbin.org/#/Status_codes visualizes http requests and headers https://quic.xargs.org/

See also, https://tls13.xargs.org/ https://tls12.xargs.org/ https://dtls.xargs.org/ - datagram tls

Learnings & Takeaways

Loren -- LoRa -- learn about channel de-confliction, & just proceed with my project Kevin -- didn't realize inter-satellite links were so quick. Continuting with gitea actions Jake -- QUIC stuff was interesting, or satellite stuff.

Elan -- reminded I don't understand all I should about LoRa. Interest in setting up a tailnet, for Noisebridge hardware. Mike -- just interesting to hear what y'all talk about. Question.

Questions, Discussion, or Coworking

• [Issue]

For next time

Readings & Exercises

• Readings
• Exercises

Join online

• Try it yourself!
  • Join libera.chat #nb-meetup-infra

https://www.noisebridge.net/wiki/Meetups/Infra