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Latest from Ops Community

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Ops Community

Jun 22, 2026 · Databases

Backup and Recovery: mysqldump / xtrabackup with Point‑In‑Time Recovery

This guide walks through practical MySQL backup and point‑in‑time recovery strategies using logical dumps with mysqldump and physical copies with Percona XtraBackup, covering configuration, command‑line examples, binlog handling, GTID/LSN concepts, incremental backups, restoration scripts, verification steps and common pitfalls for DBAs and DevOps engineers.

BackupMySQLXtraBackup

0 likes · 44 min read

Backup and Recovery: mysqldump / xtrabackup with Point‑In‑Time Recovery

Ops Community

Jun 13, 2026 · Operations

Nginx Log Analysis: Debugging Request Timeouts and 4xx/5xx Errors

This guide explains how to interpret Nginx access and error logs, understand the meaning of each log field, configure timeout directives across client, Nginx, upstream, and FastCGI layers, troubleshoot common 4xx and 5xx status codes, and use practical command‑line tools and analysis pipelines to quickly locate and resolve performance and connectivity issues.

Log AnalysisNginxTroubleshooting

0 likes · 41 min read

Nginx Log Analysis: Debugging Request Timeouts and 4xx/5xx Errors

Ops Community

Jun 11, 2026 · Cloud Native

etcd Operations Handbook: Backup, Restore, Scaling, and Performance Tuning for Kubernetes

This guide explains why mastering etcd is essential for Kubernetes stability and walks through its core concepts, Raft consensus, MVCC storage, deployment, backup and restore procedures, scaling from three to five nodes, performance optimization, monitoring, alerting, troubleshooting, upgrade strategies, security hardening, and real‑world best‑practice recommendations.

BackupKubernetesRestore

0 likes · 49 min read

etcd Operations Handbook: Backup, Restore, Scaling, and Performance Tuning for Kubernetes

Ops Community

Jun 8, 2026 · Databases

Comparing MySQL Backup Solutions: From Tool Mechanics to Production-Ready Engineering Guide

This article analyzes common MySQL backup pitfalls, explains the three backup dimensions and five types, compares major tools such as mysqldump, mysqlpump, mydumper, XtraBackup and cloud snapshots, and provides practical scripts, sizing recommendations, scheduling, monitoring, recovery procedures, and failure case studies for reliable production backup engineering.

BackupBinlogMyDumper

0 likes · 52 min read

Comparing MySQL Backup Solutions: From Tool Mechanics to Production-Ready Engineering Guide

Ops Community

Jun 7, 2026 · Information Security

Practical Container Escape Detection and Defense Strategies

This article outlines a comprehensive, step‑by‑step approach to detecting and preventing container escape attacks, covering threat modeling, vulnerability classification, hardening layers, key open‑source tools, CI/CD integration, incident response, compliance checks, and ATT&CK matrix mapping for robust Kubernetes security.

KubernetesTrivyattack detection

0 likes · 43 min read

Practical Container Escape Detection and Defense Strategies

Ops Community

Jun 6, 2026 · Operations

Ansible Best Practices: From Playbooks to Roles

This hands‑on guide walks DevOps engineers through common pitfalls of raw Playbooks, then shows how to structure inventories, variables, templates, handlers, and roles, secure secrets with Vault, optimise performance, and integrate testing and CI/CD for production‑ready Ansible automation.

AnsibleAutomationCI/CD

0 likes · 33 min read

Ansible Best Practices: From Playbooks to Roles

Ops Community

Jun 5, 2026 · Cloud Native

Practical Cloud‑Native Log Aggregation with Loki, Promtail & Grafana

This guide walks SREs and DevOps engineers through the challenges of log aggregation in containerized Kubernetes environments and shows how Loki, Promtail, and Grafana together provide a low‑cost, label‑based alternative to the ELK stack, covering architecture, deployment, query language, multi‑tenant security, performance tuning, alerting, and disaster recovery.

Cloud NativeGrafanaKubernetes

0 likes · 36 min read

Practical Cloud‑Native Log Aggregation with Loki, Promtail & Grafana

Ops Community

Jun 3, 2026 · Operations

Full‑Stack Network Packet‑Loss Diagnosis: From ping to tcpdump

This comprehensive guide walks operations engineers through the full stack of network packet‑loss troubleshooting on Linux, covering symptom identification, layer‑by‑layer analysis, key metrics, step‑by‑step commands, common scenarios, advanced tuning techniques, monitoring alerts and FAQs.

LinuxNetwork Troubleshootingconntrack

0 likes · 35 min read

Full‑Stack Network Packet‑Loss Diagnosis: From ping to tcpdump

Ops Community

Jun 1, 2026 · Cloud Native

Prevent a Single Pod from Crashing Your Kubernetes Cluster with Resource Quota

This article explains why missing ResourceQuota and LimitRange cause cluster-wide failures, walks through core concepts, provides step‑by‑step commands for quota inspection, creation, and validation, shares a real‑world outage case study, and offers best‑practice recommendations, advanced configurations, monitoring, and rollback procedures for Kubernetes resource management.

ClusterOperationsDevOpsKubernetes

0 likes · 40 min read

Prevent a Single Pod from Crashing Your Kubernetes Cluster with Resource Quota

Ops Community

May 31, 2026 · Operations

Master Batch Text Processing with awk and sed: A Practical Guide for Sysadmins

This article walks through the fundamentals and advanced techniques of using awk and sed on Linux for batch text manipulation, covering field handling, custom delimiters, BEGIN/END blocks, conditional filtering, arrays, built‑in functions, real‑world Nginx log analysis, script creation, performance tips, common pitfalls, debugging tricks, and how to combine both tools for powerful pipelines.

LinuxLog Analysisawk

0 likes · 45 min read

Master Batch Text Processing with awk and sed: A Practical Guide for Sysadmins