Official account of the Qingyun Technology Community, focusing on tech innovation, supporting developers, and sharing knowledge. Born to Learn and Share!
This article explains the fundamentals of authentication, covering session‑cookie and token methods, their workflows, security considerations, and advanced techniques such as single sign‑on, OAuth2, LDAP, and two‑factor authentication, with practical examples and code snippets.
This roundup covers GitLab's 35% Nasdaq debut surge, LinkedIn's planned shutdown of its Chinese platform, the release of Visual Studio 2022 Preview 5 and RC, a Delta Lake guide preview, findings from a cloud‑native security micro‑survey, a second‑edition service mesh guide, and a recommended cloud‑native training course.
In this interview, Zhou Xiaosi shares his seven‑year journey at QingCloud, the challenges of launching KubeSphere, his product and R&D management philosophy, and why hybrid‑cloud and cloud‑native strategies are essential for Chinese software to become globally competitive.
This article provides a detailed analysis of the kubelet CRI pod creation workflow, using the dockershim implementation as an example, and includes step‑by‑step code walkthroughs of SyncPod, sandbox creation, and the interactions between kubelet, CRI shim, Docker, and CNI.
Recent tech headlines cover Apple’s former materials chief under criminal investigation, Facebook’s massive outage, Google’s Android 12 launch, the Forbes Cloud 100 rankings, a Linux Foundation report showing a 455% rise in Kubernetes certifications, and a new cloud‑native training course.
After deploying a new cluster, a 502 error appeared when logging in because traffic to Redis’s 7000 port was intercepted by Istio’s sidecar, which routed it to a BlackHoleCluster; the article details the root cause, Istio’s listener and cluster configurations, and three practical remediation methods.
This article outlines four frequent errors that cloud teams make—misaligned skills, lacking backup plans, insufficient processes, and poor communication—and offers practical guidance on how to address each to ensure cloud projects stay on track.
This article explains how QingStor object storage uses SSL and server‑side AES256 encryption, details the client‑side tagging process, walks through the full encrypt‑and‑decrypt workflow, and provides practical API request and response examples for secure data handling.
This article explains how Tigera’s Calico integrates the open‑source WireGuard VPN with Azure Kubernetes Service using Azure CNI, detailing packet flow, encryption benefits, configuration steps, MTU handling, and RPF considerations to achieve secure, high‑performance intra‑cluster communication.
This article explores the origins, core features, and installation methods of the advanced ZFS file system, highlighting its storage pool architecture, copy‑on‑write, snapshots, data integrity checks, RAID‑Z, and massive scalability that make it popular among engineers and enterprises.
