This public account is maintained by Xiaotianguo and friends, regularly publishing widely-read original technical articles. We focus on operations transformation and accompany you throughout your operations career, growing together happily.
This guide introduces nvitop, an interactive NVIDIA‑GPU process viewer and resource manager, explains its key features, shows how to install it via uvx/pipx, demonstrates basic device and process commands as well as the real‑time monitoring mode, and provides troubleshooting tips for common issues.
This guide walks you through using Linux log tools such as last, lastb, grep, and sshd_config to identify suspicious logins, trace malicious IPs, and apply immediate remediation steps for compromised servers, targeting ops engineers and developers.
In the fast‑changing world of Kubernetes and AI, operations professionals must cultivate five compound abilities—communication, problem‑solving, ownership, stress handling, and continuous improvement—to transform technical expertise into lasting career growth and higher compensation.
Kite is a modern, lightweight Kubernetes dashboard built with Go and React that offers real‑time metrics, multi‑cluster support, and enterprise‑grade security, and this guide explains its features, Helm or YAML installation methods, service exposure via LoadBalancer or Ingress, and post‑deployment setup.
This article introduces six core AI agent paradigms—Prompt Chain, Routing & Handoff, Parallelization, Tool Use, ReAct, and Multi‑Agent—explaining their concepts, real‑world analogies, and practical examples for enhancing efficiency and intelligence in operational workflows.
This guide explains how to view Kubernetes certificates, check their expiration dates with kubeadm, renew them when needed, restart kubelet services, verify the renewal, and automate the whole process with a Bash script.
This guide introduces the open‑source 1Panel web console, outlines its key features, provides step‑by‑step commands for quick installation, and details essential hardening, backup, and troubleshooting practices for reliable Linux server operations.
MySQL’s original utf8 implementation was a limited, buggy version that only supported three‑byte characters, leading to data loss for emojis and rare symbols, so MySQL introduced utf8mb4 as a full UTF‑8 solution and now recommends it as the default encoding.
This guide explains what Traefik is, highlights its automatic service‑discovery and dynamic routing features, and provides step‑by‑step Docker‑Compose instructions to install Traefik, deploy a sample service, and verify the setup using curl or a browser.
This guide walks you through the four core stages of HTTPS certificate handling—CA distribution, domain request, validation, and data encryption—while providing detailed OpenSSL commands, Linux/Windows/macOS trust‑store paths, and a ready‑to‑run shell script for fully automated certificate generation.
