System Administration: Week 5: Networking I: A Network of Networks
In this video, we look at how independent networks connect to one another, how Autonomous Systems numbers allow us to identify network operators, and how peering between independent ASs works.
New in Talos Linux: image cache serve simplifies air-gapped & edge cluster bring-up
You can now pre-seed images and bring up clusters without deploying and managing a registry. No need to stand up and manage a full registry infrastructure just to move images via USB or local network.
#K8s #BareMetal #PlatformEngineering #DevOps #InfrastructureAsCode #GitOps #SRE #EdgeComputing
"As part of PSC's Workplace Day of Action tech workers from Google DeepMind in London have been protesting their employer's shameful complicity with Israel's genocidal military attacks on Palestinians. No tech for genocide! With United Tech & Allied Workers" - Palestine Solidarity Campaign, 12/02/2026
twitter: /PSCupdates/status/2021922497344807115
Focus on what matters by picking the alerts that are actually actionable for your team.
Try it out for yourself free 👇
https://bit.ly/4s6a6Qh
System Administration: Week 5: Networking I:The Physical Internet
In this video, we look at the physical structure of the internet, with a focus on submarine internet communications cables. Jumping from the bottom of the OSI stack all the way to Layer 9 ("political"), we then discuss how different countries use their political power to enforce internet blocks on their citizens, leading us to warrantless wiretapping in AT&T's room 641A.
👨💻🔥 Coroot chosen for Platform Engineering's Top 10 Observability Tools of 2026: https://platformengineering.org/blog/10-observability-tools-platform-engineers-should-evaluate-in-2026
Thanks for including and supporting #opensource tools!
#observability #monitrong #devops #sre #aws #cloud #AI #IT #tech #datadog #signoz #honeycomb #grafana #newrelic
The demo asks: what can this AI agent do? The Architect asks: what can it break?
Here is the Blast Radius Assessment every engineer is skipping before issuing an API key. 👇
System Administration: Week 5: Networking I: IP Allocation & IPv4 Exhaustion
Mommy, where do IP addresses come from? In this video, we discuss how IANA allocates IP addresses to the Regional Internet Registries and try to illustrate just how large the #IPv6 address space is.
🚀 Big Update: From Tutorials to Real Challenges.
Our labs are now real challenges, featuring:
- A "Check Solution" button to instantly validate your work.
- Optional hints if you get stuck.
- Full solution reveal when you're ready.
Less: "Follow these steps".
More: "Something is broken. Fix it."
Because that’s what real-world scenarios look like.
Ready to take on real DevOps challenges?
[코드 공장 시대와 미래 SRE
소프트웨어 엔지니어링의 근간이 AI와 자동화의 급격한 부상으로 재구조화되고 있으며, 기존의 워크플로우와 베스트 프랙티스가 재검토될 필요가 있습니다. AI는 코드 작성을 가속화하지만, SRE/DevOps 운영 부담은 커지고 있으며, 이 영역은 LLM 단독으로는 해결하기 어렵습니다. 서비스 자율운영을 위해 별도의 기술적 접근인 '시스템 모델'이 필요합니다.
Jan Schaumann
Sidero Labs
⬅︎⬅︎⬅︎⬅︎
VictoriaMetrics
Coroot
Valdemar
Learn by Fixing
sayzard