The 2026 Level‑3 protection assessment tightens requirements, demanding 20 specific security devices across physical, network, host, application and data layers, plus supporting management policies, with any missing item likely causing a compliance failure and jeopardizing business operations.
On July 19, 2024, a faulty CrowdStrike Falcon sensor update caused massive Windows blue‑screen crashes worldwide, affecting airlines, banks, hospitals and cloud services, prompting a rapid response that highlighted technical flaws, emergency mitigation steps, and broader lessons for software‑security and incident‑management practices.
This article details DeWu's container SRE approach, covering SRE fundamentals, on‑call response, SLO/SLA design, change management, capacity planning, kernel‑parameter monitoring, security safeguards, and a real‑world incident analysis, providing actionable insights for building resilient cloud‑native services.
A detailed post‑mortem of the July 2021 Bilibili outage reveals how a Lua‑induced CPU spike in the OpenResty‑based SLB caused widespread service disruption, the step‑by‑step emergency response, root‑cause analysis, and the subsequent architectural and operational improvements to prevent recurrence.
