We share professional insights on cloud-native, DevOps & operations, Kubernetes, observability & monitoring, and Linux systems.
This article explains the Kubernetes network model, introduces the CNI standard, and compares four popular network plugins—Flannel, Calico, Weave Net, and Cilium—highlighting their features, advantages, and suitable use cases for different cluster sizes and requirements.
DevOps, emerging from the need to resolve conflicts between development and operations, combines agile practices with automation, continuous integration, delivery, infrastructure as code, monitoring, microservices, and collaboration to create a seamless, reliable software delivery pipeline that aligns teams, speeds releases, and improves system stability.
Through a series of dialogues with a Zen master, the article humorously explores the highest level of operations—automation that runs itself, balanced alerting, cloud migration, reliable backups, high‑availability, stability through chaos engineering, and the ultimate goal of making systems operate without human intervention.
This article outlines how proactive monitoring, automation, disciplined processes, robust architecture, and chaos engineering empower operations engineers to prevent failures, manage changes, ensure reliable backups, and build self‑healing systems that balance stability, innovation, cost, and human decision‑making.
ZAP (Zed Attack Proxy) is an OWASP open-source web application security testing tool that offers proxy interception, active and passive scanning, integrates with CI/CD pipelines, and supports manual and automated testing to detect vulnerabilities such as SQL injection, XSS, SSRF, and compliance issues.
This article introduces seven essential operations tools—including Prometheus + Grafana, Ansible, ELK Stack, Kubernetes, CMDB, CI/CD pipelines, and backup solutions—covering monitoring, automation, log analysis, container orchestration, configuration management, continuous delivery, and data protection to help engineers work more efficiently.
This article provides a detailed overview of DBeaver, covering its core features, cross‑platform support, powerful SQL editor, visual data management, step‑by‑step usage instructions, and key advantages such as being free, open‑source, and highly stable for developers and DBAs.
These seven essential DevOps best practices—from cultural transformation and full automation to continuous integration, observability, security, cloud-native microservices, and performance optimization—guide teams in accelerating software delivery, enhancing quality, ensuring reliability, and reducing costs through collaborative, automated, and measurable processes.
ZAP (Zed Attack Proxy), an OWASP open‑source web application security testing tool, offers proxy interception, active and passive scanning, CI/CD integration via Docker or command line, and is suited for penetration testing, DevSecOps, and compliance checks such as OWASP Top 10 and PCI DSS.
This guide explains how to install TCPDump on various platforms, list network interfaces, capture traffic, apply filters by IP, port, or protocol, save and read capture files, and use advanced options like limiting packet count and displaying packet contents, empowering network and security professionals.
