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DevOps Operations Practice

We share professional insights on cloud-native, DevOps & operations, Kubernetes, observability & monitoring, and Linux systems.

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Latest from DevOps Operations Practice

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DevOps Operations Practice

Jun 20, 2024 · Cloud Native

Three Free Docker Visual Management Tools: Docker Desktop, Portainer, and Docker UI

This article introduces three free and user-friendly Docker visual management tools—Docker Desktop, Portainer, and Docker UI—detailing their key features such as cross‑platform support, graphical interfaces, container and image management, monitoring, and multi‑platform compatibility to help developers simplify container operations.

Container ManagementDevOpsDocker

0 likes · 5 min read

Three Free Docker Visual Management Tools: Docker Desktop, Portainer, and Docker UI

DevOps Operations Practice

Jun 18, 2024 · Information Security

Common Types of VPN and Their Characteristics

This article explains VPN technology and outlines four common VPN types—IPSec, SSL/TLS, PPTP, and L2TP/IPSec—detailing their modes, advantages, and security considerations for remote access and site‑to‑site networking, and also compares ease of deployment versus security risks, helping readers choose the appropriate solution for their network environment.

IPSecL2TPPPTP

0 likes · 4 min read

Common Types of VPN and Their Characteristics

DevOps Operations Practice

Jun 17, 2024 · Operations

Key DevOps Metrics: Deployment Frequency, Lead Time, Change Failure Rate, MTTR, and Customer Satisfaction

This article explains essential DevOps metrics—including deployment frequency, lead time for changes, change failure rate, mean time to recovery, and customer satisfaction—detailing why they matter, how to measure them, and practical practices to improve each metric for more efficient and reliable software delivery.

Change Failure RateDevOpsLead Time

0 likes · 9 min read

Key DevOps Metrics: Deployment Frequency, Lead Time, Change Failure Rate, MTTR, and Customer Satisfaction

DevOps Operations Practice

Jun 16, 2024 · Fundamentals

Understanding the /proc Virtual Filesystem in Linux

This article explains the Linux /proc virtual filesystem, detailing its role as an in‑memory pseudo‑filesystem that provides comprehensive system and process information such as CPU, memory, uptime, process details, hardware, and filesystem data.

FilesystemSystem Informationproc

0 likes · 4 min read

Understanding the /proc Virtual Filesystem in Linux

DevOps Operations Practice

Jun 11, 2024 · Information Security

Common Weak Passwords and Best Practices for Secure Password Creation

The article presents NordPass's annual most‑used password list, highlights the top ten weak passwords in China that can be cracked in seconds, explains why users choose them, and offers four practical recommendations for creating stronger, more secure passwords.

Best PracticesInformation SecurityNordPass

0 likes · 3 min read

Common Weak Passwords and Best Practices for Secure Password Creation

DevOps Operations Practice

Jun 6, 2024 · Cloud Native

Step‑by‑Step Guide to Deploying an Enterprise‑Grade Harbor Private Registry

This article explains why enterprises need a private Docker registry, introduces the open‑source Harbor project, outlines its architecture and hardware/software requirements, and provides detailed installation, configuration, and usage instructions—including Docker, Docker‑Compose, and Harbor setup commands—to get a secure, CNCF‑certified container image repository up and running.

CNCFContainer SecurityDevOps

0 likes · 7 min read

Step‑by‑Step Guide to Deploying an Enterprise‑Grade Harbor Private Registry

DevOps Operations Practice

Jun 5, 2024 · Information Security

Introducing KeePass: A Secure Open-Source Password Manager and How to Use It

This guide explains why secure password management is crucial, introduces the open‑source KeePass manager, and provides step‑by‑step instructions for installing, configuring, and using its features such as group management and entry creation across platforms.

KeePassPassword Managementencryption

0 likes · 6 min read

Introducing KeePass: A Secure Open-Source Password Manager and How to Use It

DevOps Operations Practice

Jun 3, 2024 · Cloud Native

Top 5 Popular Kubernetes CNI Network Plugins: Flannel, Calico, Weave Net, Cilium, and Canal

This article introduces the five most popular Kubernetes CNI network plugins—Flannel, Calico, Weave Net, Cilium, and Canal—detailing their features, typical use‑cases, and installation commands to help you choose the right solution for your cluster.

CNICalicoCanal

0 likes · 5 min read

Top 5 Popular Kubernetes CNI Network Plugins: Flannel, Calico, Weave Net, Cilium, and Canal

DevOps Operations Practice

Jun 2, 2024 · Cloud Computing

Core Components, Features, and Use Cases of OpenStack

This article introduces OpenStack as an open‑source cloud computing platform, outlines its ten core services such as Nova, Swift, and Keystone, highlights key characteristics like openness and modularity, and discusses typical public, private, and hybrid cloud deployment scenarios.

Cloud ComputingIaaSOpenStack

0 likes · 5 min read

Core Components, Features, and Use Cases of OpenStack

DevOps Operations Practice

May 30, 2024 · Operations

Introducing Karma: A Prometheus Alert Dashboard Tool

This article introduces Karma, a Docker‑deployed Prometheus alert dashboard that aggregates multiple Alertmanager instances, explains its installation requirements, and details key features such as visual alert aggregation, tag‑based grouping, and silence management, positioning it as a valuable operations tool.

Alert DashboardAlertmanagerDocker

0 likes · 4 min read

Introducing Karma: A Prometheus Alert Dashboard Tool