Focused on sharing practical Linux technology content, covering Linux fundamentals, applications, tools, as well as databases, operating systems, network security, and other technical knowledge.
This article introduces six free, open‑source network monitoring solutions—Zabbix, Prometheus, Cacti, Grafana, OpenNMS, and Nagios—explaining their core capabilities, typical use cases, and how they help operations teams maintain system reliability and quickly resolve issues.
This comprehensive guide examines Linux compression and decompression, comparing tar, gzip, and zip in depth, covering algorithm fundamentals, performance benchmarks, practical command examples, automation scripts, security considerations, and best‑practice recommendations to help engineers choose the optimal tool for backup, deployment, and data transfer tasks.
A seasoned operations veteran shares a step‑by‑step incident‑response workflow, the SEAL troubleshooting methodology, essential monitoring and debugging tools, real‑world case studies, automated scripts, and best‑practice guidelines to help engineers quickly diagnose and resolve production outages.
The article traces Intel's early processor line‑up—from the 4004 to the 80486—explains how the “86” suffix created the x86 family, shows that the name is unrelated to bit width, and follows the later AMD64 extension and Windows naming that linked 32‑bit software to the “Program Files (x86)” folder.
The article presents six free online diagramming platforms—Excalidraw, Zen Flowchart, Visual Paradigm Online, draw.io, 迅捷画图, and ProcessOn—detailing their key features, collaboration capabilities, template libraries, and direct URLs, helping operations professionals quickly choose the right visual‑communication tool.
This guide explains how attackers can conceal file‑modification timestamps on a Linux server by using the touch and stat commands, organizing a Bash script to save and restore timestamps, and automating the process to erase forensic evidence of malicious activity.
This article introduces five core Linux file comparison utilities—diff, colordiff, wdiff, vimdiff, and sdiff—explaining their syntax, key options, installation steps, and practical examples so readers can choose the right tool for their workflow.
This article walks through Docker's built‑in networks, the four network modes (bridge, host, container, none), how to create and manage Linux network namespaces and veth pairs, and provides practical commands for configuring bridges, port mapping, DNS, and custom network settings.
This article compiles a comprehensive guide to Linux performance analysis utilities, covering basic commands like vmstat, iostat, dstat, top, htop, and advanced tools such as perf, eBPF, Flame Graphs, and sar, with usage examples, output explanations, and practical tips for system monitoring and tuning.
This article compiles a comprehensive cheat‑sheet of Linux commands, ranging from basic file operations to advanced networking utilities, presented through a series of screenshots that together form a practical reference for network engineers.
