An operations lab passionate about server tinkering 🔬 Sharing automation scripts, high-availability architecture, alert optimization, and incident reviews. Using technology to reduce overtime and experience to avoid major pitfalls. Follow me for easier, more reliable operations!
A production incident showed that despite flawless frontend health metrics and no logged errors, a subset of users experienced 504 Gateway Timeout errors caused by an MTU mismatch in the network path, highlighting the need for end‑to‑end connectivity checks beyond application monitoring.
This guide compiles 50 practical Docker commands covering daily status checks, weekly resource cleanup, monthly security hardening, logging and monitoring, image management, high‑availability, and disaster‑recovery, helping operators maintain healthy containers across Rocky, CentOS, and Kylin environments.
This guide shows how to quickly configure the open‑source DDNS‑GO tool with Docker, obtain API keys from DNS providers, and secure the web interface, enabling reliable remote access to home or office networks despite constantly changing public IP addresses.
This guide shows how a single shell script can automatically detect the Linux distribution, install Docker CE using Alibaba Cloud mirrors, configure three domestic registry accelerators, and verify the installation, providing a fast and secure Docker environment for developers in China.
This article introduces a lightweight Bash script that, with one curl command, automatically gathers CPU, memory, disk, and network information from a Linux server and outputs a formatted, color‑coded report in seconds, dramatically simplifying routine ops tasks.
AnyLink is an open‑source, lightweight SSL‑VPN server written in Go that offers standard TLS tunnels, multi‑user management, seamless internal resource access, cross‑platform clients, and zero‑cost private deployment, making it an ideal solution for secure remote office connectivity without commercial hardware.
Ventoy turns a USB drive into a reusable multi‑boot repository, letting you drag and drop ISO files without formatting, dramatically speeding up Windows, Linux, PE, or ESXi installations and simplifying system management for IT and operations professionals.
This guide shows how to quickly set up Navidrome—a lightweight, fully Chinese, open‑source music streaming server—on any Linux machine using Docker Compose, covering prerequisites, configuration, security tips, and mobile client setup for seamless personal music access.
The article reveals how thousands of SSH brute‑force attempts target servers daily, explains why password‑based root logins are a critical risk, and provides five practical Bash scripts—analysis, auto‑banning, security checks, user audits, and daily reporting—to quickly fortify SSH defenses.
This guide details seven critical Redis hardening steps—including timeout, syslog, strong password, non‑root execution, strict file permissions, trusted bind addresses, and command renaming—to transform insecure default settings into a verifiable, production‑ready security baseline.
