Showing 100 articles max
Deepin Linux
Deepin Linux
May 7, 2026 · Operations

Don’t Claim You Can Troubleshoot Networks Until You Understand Packet Loss

This article explains what network packet loss is, its common causes—from hardware faults to congestion and misconfiguration—and provides a step‑by‑step, production‑ready methodology for diagnosing and resolving loss using tools such as ping, traceroute, Wireshark and tcpdump.

LinuxTCP/IPTroubleshooting
0 likes · 31 min read
Don’t Claim You Can Troubleshoot Networks Until You Understand Packet Loss
Linux Kernel Journey
Linux Kernel Journey
May 6, 2026 · Operations

How eBPF and AI Redefine Mobile Microarchitectural Energy‑Efficiency Analysis

By combining low‑overhead eBPF data collection with AI‑driven diagnosis and an agent‑based execution layer, the authors present a three‑tier system that shifts mobile optimization from peak performance to sustained energy efficiency, achieving sub‑1% monitoring overhead and up to 20% power savings in real‑world video workloads.

AIAgent ArchitectureeBPF
0 likes · 12 min read
How eBPF and AI Redefine Mobile Microarchitectural Energy‑Efficiency Analysis
Ops Community
Ops Community
May 6, 2026 · Operations

Step‑by‑Step Debugging of a Slow Website: From Nginx to the Database

When a website’s response time jumped from 200 ms to over 10 seconds, this guide walks through a layered investigation—from confirming the scope, checking Nginx and upstream health, analyzing application logs, inspecting MySQL processes, slow queries, and locks, to examining server CPU, memory, disk I/O, and network—providing concrete commands, expected outputs, and root‑cause patterns for effective troubleshooting and preventive monitoring.

LinuxPerformanceServer
0 likes · 34 min read
Step‑by‑Step Debugging of a Slow Website: From Nginx to the Database
MaGe Linux Operations
MaGe Linux Operations
May 6, 2026 · Operations

Common Nginx Misconfigurations That Cause Production Outages and How to Fix Them

The article systematically reviews ten typical Nginx configuration pitfalls that frequently trigger production incidents—such as location‑matching errors, proxy_pass slash issues, misuse of try_files, insufficient keepalive settings, client_max_body_size limits, gzip misconfiguration, incomplete TLS setup, worker process limits, log‑rotation problems, and exposed server version—providing a clear phenomenon → root cause → correct configuration → verification → risk reminder workflow for each, plus a comprehensive troubleshooting path, checklist, and rollback script for safe production changes.

DevOpsPerformanceTroubleshooting
0 likes · 55 min read
Common Nginx Misconfigurations That Cause Production Outages and How to Fix Them
Architect's Ambition
Architect's Ambition
May 5, 2026 · Operations

OpenClaw vs Hermes: Static Control vs Dynamic Evolution—Which Should You Choose?

The article compares OpenClaw, a manually configured, fully controllable automation tool, with Hermes Agent, an automatically self‑evolving agent, detailing their design philosophies, learning mechanisms, pros and cons, and provides a decision matrix and best‑practice recommendation to use them together for optimal efficiency.

Hermes AgentOpenClawautomation
0 likes · 8 min read
OpenClaw vs Hermes: Static Control vs Dynamic Evolution—Which Should You Choose?
ITPUB
ITPUB
May 5, 2026 · Operations

Auto‑Show CPU, Memory, and Disk Usage on Linux Login with a Single Script

This article provides a ready‑to‑use Bash script that, when placed in a system‑wide or user profile directory, automatically displays hostname, uptime, load average, IP address, CPU and memory usage, and disk mount statistics each time you log into a Linux server, along with color‑coded formatting and customization tips.

BashLinuxautomation
0 likes · 6 min read
Auto‑Show CPU, Memory, and Disk Usage on Linux Login with a Single Script
Linux Tech Enthusiast
Linux Tech Enthusiast
May 4, 2026 · Operations

Essential Linux Commands Every Sysadmin Should Know

This guide compiles the most frequently used Linux commands for system administrators, covering navigation, file manipulation, searching, permission handling, text processing, archiving, system control, and process management, complete with practical examples and option details to boost daily operational efficiency.

Command LineFile ManagementLinux
0 likes · 15 min read
Essential Linux Commands Every Sysadmin Should Know
Machine Heart
Machine Heart
May 3, 2026 · Operations

Is LLM4OR the Next Hot Application? Exploring Its First Enterprise Decisions

The article examines how LLM4OR merges large language models with operations research to turn manufacturing and supply‑chain business language, data fields, and on‑site rules into computable optimization models, outlining its potential entry points in enterprise decision‑making and the challenges of modeling.

Agentic FactoryEnterprise OptimizationLLM
0 likes · 9 min read
Is LLM4OR the Next Hot Application? Exploring Its First Enterprise Decisions
Test Development Learning Exchange
Test Development Learning Exchange
May 2, 2026 · Operations

Give Your Test Scripts a Brain: 15 Cutting‑Edge AI Decorators for 2026

The article showcases fifteen practical AI‑powered Python decorators that transform brittle if‑else test code into intelligent, self‑healing automation—covering smart retry, semantic assertions, data generation, flaky detection, traffic replay, dynamic timeouts, sensitive data masking, root‑cause analysis, and more—complete with concrete code samples and explanations.

AI testingLLMPython
0 likes · 18 min read
Give Your Test Scripts a Brain: 15 Cutting‑Edge AI Decorators for 2026
Architect Chen
Architect Chen
May 1, 2026 · Operations

Comprehensive Nginx Command Guide (2026 Edition)

This article provides a detailed reference of essential Nginx commands—including startup, shutdown, reload, configuration checks, process signaling, debugging, and monitoring—explaining their effects, typical use cases, and the underlying behavior of master and worker processes.

Command LineLinuxProcess Control
0 likes · 5 min read
Comprehensive Nginx Command Guide (2026 Edition)
dbaplus Community
dbaplus Community
May 1, 2026 · Operations

Why a Simple Nginx Change Made All Gateway Requests Return 400 (And How to Fix It)

A production incident caused by replacing two Nginx reverse proxies introduced an upstream name with an underscore, resulting in invalid Host headers and 400 Bad Request responses from Spring Cloud Gateway; the article details the step‑by‑step investigation, evidence from logs, tcpdump, and code, and presents configuration fixes to restore normal operation.

HTTP 400Host headerSRE
0 likes · 15 min read
Why a Simple Nginx Change Made All Gateway Requests Return 400 (And How to Fix It)
Woodpecker Software Testing
Woodpecker Software Testing
Apr 30, 2026 · Operations

Intelligent Regression Testing: Practical Strategies Every Test Engineer Should Know

The article shows how data‑driven, AI‑enhanced regression testing—using impact graphs, adaptive scheduling, and root‑cause inference—can cut execution time, reduce failure analysis from minutes to seconds, and boost test ROI, illustrated with real‑world cases from e‑commerce, finance, IoT and SaaS platforms.

AI testingRegression testingadaptive scheduling
0 likes · 8 min read
Intelligent Regression Testing: Practical Strategies Every Test Engineer Should Know
Java Tech Enthusiast
Java Tech Enthusiast
Apr 30, 2026 · Operations

What Does “Familiar with Linux” Really Mean in Campus Recruitment?

The article explains that while many graduates claim to be “familiar with Linux,” interviewers expect the ability to solve about 80% of daily tasks, covering core commands, file permissions, process monitoring, networking, shell scripting, and real‑world troubleshooting.

Campus RecruitmentInterview preparationLinux
0 likes · 5 min read
What Does “Familiar with Linux” Really Mean in Campus Recruitment?
MaGe Linux Operations
MaGe Linux Operations
Apr 30, 2026 · Operations

Disk Full on Linux? Run These 8 Diagnostic Commands First

When a Linux server reports a full disk, this guide walks you through eight essential commands to diagnose whether the issue is actual space exhaustion, inode depletion, lingering deleted files, or I/O bottlenecks, and provides a systematic cleanup workflow for production environments.

LinuxTroubleshootingdf
0 likes · 19 min read
Disk Full on Linux? Run These 8 Diagnostic Commands First
AI Architect Hub
AI Architect Hub
Apr 30, 2026 · Operations

Comprehensive Guide to Installing Hermes and Its Web UI

This tutorial walks through installing Hermes with a single curl command that checks Python 3.11+, installs Node v23+, sets up a virtual environment, configures channels like WeChat, QQ and Feishu, and then adds the open‑source Hermes Web UI via npm for full model configuration and chat capabilities.

HermesInstallationNode
0 likes · 3 min read
Comprehensive Guide to Installing Hermes and Its Web UI