Docker Archives

Winsage

May 26, 2026

Why Hyper-V Breaks Emulators on Windows 11 (And the Fix)

Enabling Hyper-V on Windows 11 can cause applications like BlueStacks or VirtualBox to lag or fail to launch due to conflicts with CPU virtualization extensions (VT-x/AMD-V). Hyper-V is a Type-1 hypervisor that monopolizes these resources, preventing Type-2 hypervisors from accessing them directly. Common issues include error messages from BlueStacks, LDPlayer, VirtualBox, VMware, and Android Studio related to virtualization availability. To check if Hyper-V is enabled, users can use Task Manager, System Information, Windows Features, Command Prompt, or PowerShell. Disabling Hyper-V can be done through various methods, including unchecking it in Windows Features, using PowerShell, the bcdedit command, or modifying BIOS settings. However, disabling Hyper-V also stops functionalities like WSL2 and Memory Integrity. Some modern emulators, such as BlueStacks and VMware Workstation Pro, have adapted to work alongside Hyper-V, while VirtualBox's compatibility remains experimental. For optimal emulator performance, users should allocate appropriate CPU cores and RAM, ensure virtualization is enabled in BIOS, enable GPU acceleration, and set the Windows power plan to "Best performance." If issues persist, users should confirm Hyper-V is off, check BIOS settings, and reset emulator configurations.

Tech Optimizer

May 25, 2026

How to create a Metabase dashboard with Docker

Creating a self-hosted analytics dashboard using Metabase and Docker involves deploying the Metabase container, which integrates with PostgreSQL for data storage. The prerequisites include a server or local machine with Docker, terminal access, an available port (typically 3000), a PostgreSQL database, and connection details for the business database. The installation steps are as follows: 1. Pull the Metabase Docker image using `docker pull metabase/metabase:latest`. 2. Run the Metabase container with `docker run -d -p 3000:3000 --name metabase metabase/metabase`. 3. Verify the container operation using `docker ps` and check logs with `docker logs -f metabase`. 4. Access the Metabase setup wizard at `http://localhost:3000` or `http://your-server-ip:3000`. 5. Manage the Metabase container using `docker stop metabase`, `docker start metabase`, and `docker restart metabase`. For a production setup, it is recommended to integrate PostgreSQL for persistent storage. Steps include creating a project directory, a Docker Compose file, launching both Metabase and PostgreSQL containers, monitoring logs, accessing Metabase, managing the deployment with Docker Compose commands, and updating Metabase by pulling the latest image. To create a business intelligence dashboard, connect your business data source by selecting the database type and entering connection details. Create questions using the visual query builder or SQL, choose suitable visualizations, compile saved questions into dashboards, add filters for interactivity, and share the dashboard with stakeholders while managing permissions.

Winsage

May 19, 2026

Best Virtual Machine for Mac (2026): Parallels Recognized for Windows Performance and Compatibility by Software Experts

Parallels Desktop for Mac is recognized as a leading solution for running Windows applications on macOS due to its robust performance, extensive compatibility, and seamless integration capabilities. It allows users to operate Windows, Linux, and other operating systems alongside macOS on a single device, enabling access to Windows 11 and various Windows applications. Parallels Desktop is the only solution endorsed by Microsoft for running Windows 11 on Apple Silicon Macs. It supports features like Coherence Mode, drag-and-drop functionality, direct access to Mac Finder files, and compatibility with thousands of Windows applications, including popular games. The Pro Edition offers advanced tools for developers and power users, such as support for multiple virtual machines, expanded virtual hardware allocation, and integration with Visual Studio. Parallels Desktop is widely adopted by home users, students, enterprises, developers, and creators, and the company provides 24/7 subscriber support and a 30-day money-back guarantee.

TrendTechie

April 27, 2026

Домашний Netflix за вечер: Transmission + Jellyfin + Telegram-бот на Docker с поддержкой NAS

The setup involves a Keenetic router with a 2TB USB drive, functioning as a NAS for network storage. It utilizes three Docker containers: Transmission with Flood UI for torrent management, Jellyfin as a media server, and a Telegram bot for adding torrents and receiving notifications. The process allows users to send .torrent files via Telegram, which are then downloaded and made available in Jellyfin for viewing on various devices. The configuration requires Docker, a NAS or router with SMB share, and a Telegram account. The system is designed to maintain data integrity through OS reinstalls, and it can be set up quickly using a provided repository and configuration files.

Tech Optimizer

April 15, 2026

Postgres to Iceberg in 13 minutes: How Supermetal compares to Flink, Kafka Connect, and Spark

Supermetal introduced Iceberg sink support, allowing for data transfer from Postgres to Iceberg. In a performance comparison, Supermetal completed snapshotting in 13 minutes, while Flink took 90 to 116 minutes, Kafka Connect required 120 minutes, and Spark exceeded 3 hours. The tests focused on throughput during the snapshotting phase rather than latency. The setup used the TPC-H dataset with a scale factor of 50 and involved AWS infrastructure. Supermetal operates independently of Kafka, enabling direct data delivery from source to sink. It utilizes a JSON configuration file for deployment, supporting various catalogs and advanced configuration options. Supermetal's Iceberg writer can adjust settings based on the CDC source phase. Throughout the tests, Supermetal maintained low CPU and memory usage, while other tools faced challenges with performance and resource management. Data synchronization was validated across all tools, with Supermetal achieving at least 7x faster snapshotting performance without tuning.

Tech Optimizer

April 6, 2026

36 Malicious npm Packages Exploited Redis, PostgreSQL to Deploy Persistent Implants

Cybersecurity researchers have discovered 36 malicious packages in the npm registry that impersonate Strapi CMS plugins. These packages exploit Redis and PostgreSQL, deploy reverse shells, harvest credentials, and establish persistent implants. Each package consists of three files—package.json, index.js, and postinstall.js—without descriptions or repositories, and all use version 3.6.8 to mimic legitimate Strapi plugins. The malicious packages follow a naming convention starting with "strapi-plugin-" and were uploaded by four accounts within 13 hours. The identified packages include names like strapi-plugin-cron, strapi-plugin-database, and strapi-plugin-server. The malicious code is embedded in the postinstall script, executing automatically upon installation with the same privileges as the user. The payloads evolve from exploiting Redis for remote code execution to attempting direct PostgreSQL database exploitation and deploying persistent implants for remote access. The campaign appears to target cryptocurrency platforms, as indicated by the focus on credential theft and digital assets. Users of these packages are advised to assume compromise and rotate credentials. This incident reflects a broader trend of supply chain attacks in the open-source ecosystem, with recent examples including credential exfiltration payloads in GitHub repositories and compromised GitHub Actions workflows. Group-IB reported that software supply chain attacks are increasingly reshaping the cyber threat landscape, targeting trusted vendors and open-source software to gain access to downstream organizations.

Winsage

March 31, 2026

Microsoft to upgrade Windows Subsystem for Linux (WSL) with faster file access, better networking and easier setup

Microsoft plans to enhance the Windows Subsystem for Linux (WSL) in 2026, focusing on several key improvements for developers. These enhancements include: - Faster file performance between Linux and Windows to address current latency issues. - Improved network compatibility and throughput for better communication between environments. - A streamlined setup and onboarding experience to simplify installation for newcomers. - Enhanced enterprise management and security features to improve control and safety in corporate settings.

Tech Optimizer

March 24, 2026

Gold Lapel launches PostgreSQL proxy to tune queries

Gold Lapel has introduced a PostgreSQL proxy that enhances database query performance by acting as an intermediary between applications and PostgreSQL databases. The proxy monitors live queries, identifies issues, and implements optimizations such as creating materialised views, introducing various index types, and rewriting queries. It supports over ten optimization strategies, seven programming languages, four frameworks, and three ORMs, and is available for Linux, macOS, Windows, and Docker. The software includes features like prepared statement caching, in-memory result caching, connection pooling, automatic read replica routing, and security measures including TLS. An observability layer provides a live web dashboard and audit timeline. The pricing model is USD 9 per month per instance, with a site license available for unlimited instances. Gold Lapel has also released a 19-chapter technical book on PostgreSQL performance optimization. The company was founded by Stephen Gibson and is based in San Francisco.

Winsage

March 11, 2026

5 Windows 11 Features That Are Slowing Down Your Computer

OneDrive automatically backs up essential folders and personalized settings for Windows users, allowing seamless data synchronization upon signing into a Microsoft account. However, uploading data can strain computer resources, particularly RAM and CPU, and consume significant bandwidth. Users can pause syncing by clicking the OneDrive icon, selecting the gear icon, choosing "Pause syncing," and selecting a duration of 2, 8, or 24 hours. Windows 11 features modern transparency effects and smooth animations that enhance user experience but can impact system performance, especially on older hardware with less than 8 GB of RAM. Users can disable these effects by navigating to Settings > Accessibility > Visual Effects and toggling off Transparency effects and Animation effects. The startup apps feature allows essential applications to load automatically at boot, but too many startup apps can prolong boot time and strain resources. Users can manage startup apps by right-clicking the Start button, selecting Task Manager, navigating to the Startup app tab, and disabling unnecessary apps. Windows allows certain applications to run in the background for tasks like notifications and updates, but excessive background apps can hinder performance. Users can prevent specific apps from running in the background by going to Settings > Apps > Installed Apps, clicking the three-dot icon next to the app, selecting Advanced options, and setting Background app permissions to "Never." Windows Update can cause temporary slowdowns, and while blocking updates is not advisable, users can pause updates for one to five weeks by going to Settings > Windows Update and selecting the desired pause duration.

TrendTechie

February 24, 2026

От ffmpeg до торрентов для терминала: 7 новых TUI-инструментов, которые советуем

Many developers are turning to TUI (Text User Interface) tools for tasks traditionally done in GUI applications. MONICA is an interactive layer over ffmpeg that simplifies command usage, available on GitHub. The lic tool allows users to create a LICENSE file with a single terminal command by selecting a license from a TUI menu. It can be installed via Homebrew or pip and debuted in late December 2024, receiving 21 stars. PNANA is a TUI editor that combines the simplicity of nano with features from modern editors like Sublime, built with C++17 and FTXUI. Users need to compile it from source as no binary releases are available. CodeWeaver compiles a codebase into a single Markdown document, allowing for easy sharing and documentation. It can be installed via Go. Clox (version 1.3) introduces console clocks and calendars in the terminal, supporting various time zones and formats, and can be installed as a Python module. Torrra v2 is a TUI torrent client that allows users to search and download torrents directly from the console, enhancing UI speed and navigation. It can be installed via pipx or other package managers. A command for visualizing git history in the terminal is provided: `git log --graph --decorate --all --pretty=format:'%C(auto)%h%d %C(#888888)(%an; %ar)%Creset %s'`. An alias can be created for convenience. All tools aim to enhance productivity in the terminal and are actively evolving.