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A comprehensive guide for ops engineers that explains how to use tcpdump, ss, and iptables to diagnose and resolve common Linux networking issues, covering tool basics, practical scenarios, detailed command examples, scripts, best practices, and monitoring strategies.
Discover a curated collection of 20 open-source operations tools, covering terminal enhancements, file handling, system monitoring, network diagnostics, text processing, and container management, each with installation steps, configuration examples, and real-world use cases to dramatically improve productivity and streamline daily sysadmin tasks.
This comprehensive guide shows how to use the GNU tools grep, sed, and awk to quickly analyse massive Nginx access logs, covering their streaming design, optimal command parameters, real‑world examples, performance tricks, security safeguards and step‑by‑step scripts for fault isolation and reporting.
This comprehensive guide explains how to collect and analyze Linux system metrics—including CPU usage, memory consumption, disk I/O, and load average—using native /proc and /sys interfaces, popular command‑line tools, and Prometheus Node Exporter, with practical scripts, configuration examples, and troubleshooting case studies for reliable performance monitoring and capacity planning.
An up‑to‑date guide based on systemd 256 examines the evolution from SysVinit, compares core features, startup mechanisms, dependency handling, process tracking, and security, and provides step‑by‑step migration, configuration examples, performance tuning, and troubleshooting tips for Linux administrators.
This comprehensive guide walks you through HAProxy 3.0’s new features, hardware and OS requirements, step‑by‑step installation, detailed global, frontend, backend configurations, health‑check optimization, monitoring with Prometheus, troubleshooting tips, backup strategies, and best‑practice recommendations for high‑performance load balancing in production environments.
This guide details how to replace native Transformers inference with the high‑performance vLLM engine, leveraging PagedAttention, continuous batching, tensor parallelism, and OpenAI‑compatible APIs to achieve 3‑4× higher throughput, lower latency, and scalable multi‑GPU deployments for production‑grade large language models.
This guide walks through implementing a GitOps 2.0 workflow that combines ArgoCD and Crossplane to manage both application deployments and multi‑cloud infrastructure as declarative YAML stored in Git, covering architecture, environment setup, step‑by‑step installation, example use cases, best‑practice recommendations, troubleshooting, monitoring, and backup strategies.
This comprehensive guide walks you through RAID fundamentals, explains each RAID level’s performance and reliability trade‑offs, shows real‑world selection criteria, provides step‑by‑step Linux and hardware RAID configuration scripts, monitoring tools, troubleshooting tips, and best‑practice recommendations for modern storage environments.
This guide explains how to use Nginx's proxy_cache to dramatically cut page latency by caching repeated responses, covering background, cache architecture, configuration steps, best‑practice key design, common pitfalls, security tips, performance tuning, monitoring, and backup strategies for high‑traffic web services.
