tar Archives

AppWizard

September 6, 2026

Pterodactyl Multi-Game Cloud Server: 13 Steps [2026]

In 2026, hosting game servers has become more efficient, allowing multiple game servers to run on a single cloud VPS using Pterodactyl Panel, which utilizes Docker containers for isolation. Pterodactyl is a free, open-source game server management panel that gained popularity due to its user-friendly interface and robust architecture. The latest stable release, v1.12.0, was launched in January 2026, with newer deployment templates available as of August 2026. To set up Pterodactyl, prerequisites include a cloud VPS with specific CPU and RAM requirements, Ubuntu 24.04 LTS, PHP 8.3, MariaDB 11.8.8 or newer, Redis 8.10.0 or newer, Docker Engine, a registered domain for SSL, SteamCMD dependencies, and at least 80 GB SSD storage. The installation process involves provisioning the VPS, installing necessary software, configuring Pterodactyl, setting up Nginx with SSL, and deploying game servers. Common pitfalls include under-provisioning RAM for resource-intensive games, neglecting firewall settings, and allowing backup retention to grow uncontrollably. Troubleshooting may involve addressing PHP-FPM issues, connection problems, and ensuring proper resource allocation. Advanced scaling may require multiple VPS nodes, and security measures like two-factor authentication can help protect the server. Pterodactyl is free to use commercially and can run multiple game containers on a single node.

Tech Optimizer

August 25, 2026

Migrate Vaultwarden to PostgreSQL: Scale for Teams [2026]

Self-hosting Vaultwarden with SQLite can lead to performance issues as the user base grows, particularly due to SQLite's limitations with concurrent writes. Transitioning to PostgreSQL allows for better performance, multi-user support, and enhanced data durability. PostgreSQL supports concurrent connections and row-level locking, making it more suitable for team environments. To migrate from SQLite to PostgreSQL, certain prerequisites must be met, including having an existing Vaultwarden deployment, Docker Engine, a PostgreSQL server, and pgloader installed. The migration process involves backing up existing data, deploying a PostgreSQL container, updating configuration files, and using pgloader to transfer data. A VPS with 2 vCPU and 4GB RAM can support up to 50 users, with larger teams requiring more resources. PostgreSQL also allows for the creation of organizations for shared vault access and the configuration of group policies for security. Regular backups and performance tuning are necessary to maintain optimal operation. Common pitfalls during migration include not stopping the Vaultwarden container before migration, failing to encode special characters in the database password, and neglecting to back up data. Troubleshooting may involve checking connection strings and ensuring the PostgreSQL container is healthy. Advanced configurations can enhance performance and functionality, and understanding the differences between Vaultwarden and Bitwarden's official self-hosted server can aid in decision-making.

Winsage

June 24, 2026

Windows RAT Uses Encrypted HTTP C2 and Registry Persistence After npm Infection

A malware campaign targets Windows systems through a malicious npm package named postcss-minify-selector-parser, which mimics the legitimate postcss-selector-parser. This counterfeit package installs a Remote Access Trojan (RAT) on developer machines, beginning with a multi-stage attack triggered by the installation of the package. The RAT can steal credentials, execute shell commands, and communicate with a remote attacker. Security researchers at JFrog identified this threat and reported it on June 22, 2026, noting that two additional related packages, postcss-minify-selector and aes-decode-runner-pro, are linked to the same publisher and remain live on the npm registry. The RAT employs encrypted HTTP communication with a command-and-control (C2) server and ensures persistence by creating a registry key under the Windows Run key. It has capabilities for remote shell execution, file uploads and downloads, and can steal saved login data from Google Chrome using Windows decryption APIs. The malware is designed for organized batch exfiltration of stolen data. Indicators of compromise include specific IP addresses, domains, file paths, and SHA-256 hashes associated with the malware components. JFrog advises users to remove the malicious packages, inspect their dependency trees, and treat any stored credentials as compromised.

Tech Optimizer

June 20, 2026

PostgreSQL 18 on Amazon Aurora and Amazon RDS: Performance enhancements

PostgreSQL 18 addresses common performance challenges for users, including managing query performance across composite indexes, diagnosing memory spills in materialized Common Table Expressions (CTEs), and upgrading major versions without plan regressions. Key enhancements include skip scan optimization for multicolumn indexes, improved EXPLAIN functionality, and optimizer statistics that persist through major version upgrades. Skip scan optimization allows PostgreSQL to efficiently utilize multicolumn B-tree indexes even when leading columns are not specified in the WHERE clause, significantly improving query performance. The EXPLAIN command has been enhanced to include buffer statistics by default, providing deeper insights into query execution and resource usage. PostgreSQL 18 also introduces visibility into the storage of materialized nodes in query plans, indicating whether intermediate results were stored in memory or spilled to disk. A new metric, Index Searches, has been added to EXPLAIN ANALYZE output, indicating how many times the database traversed the index tree during query execution. Additionally, Self-Join Elimination (SJE) automatically detects and removes unnecessary inner joins of a table to itself, optimizing query performance. The autovacuum mechanism has been improved with the introduction of autovacuum_vacuum_max_threshold, which caps the number of dead tuples that can accumulate before autovacuum triggers a VACUUM, addressing issues with large tables. The vacuum_truncate parameter provides a server-wide control point to disable VACUUM’s file truncation behavior, reducing locking issues on busy systems. PostgreSQL 18 also separates the allocation of autovacuum worker slots from their usage, allowing for dynamic adjustments to autovacuum_max_workers without requiring a server restart. Finally, new columns in pg_stat_all_tables track cumulative time spent on maintenance operations, providing better insights into maintenance overhead for each table.

Winsage

June 12, 2026

Popular Windows 11 file manager Files gets improved tags, layouts, and new OneDrive icon

Files, a third-party file manager for Windows 11, has been updated to version 4.1.3, introducing several enhancements: - A "View size" button for each folder allows users to calculate folder sizes easily without changing settings. - File selection is retained when switching between different layouts. - Tag management has been streamlined, allowing users to remove tags via the context menu, toolbar, or Command Palette. - The OneDrive icon has been updated to reflect the current version from the OneDrive executable. - Bug fixes include resolving issues with tar archive extraction, crashes on the Signatures page, ensuring the Play action for single media files, correcting Smart Extract functions, addressing tag search issues, refreshing thumbnails, and displaying previously hidden BitLocker-locked drives. - A new Tree View sidebar feature is planned for future updates, enabling navigation of folders in an expandable hierarchy. Files can be downloaded from the Microsoft Store (paid version) or accessed through its official website (free version).

Winsage

June 11, 2026

Microsoft refuses to add this File Explorer feature, so the Files app stepped up

The Files app has introduced a feature in version 4.1.3 that allows users to calculate folder sizes on demand, which was not available in Windows 11's File Explorer. Users can toggle this option in Settings, and when disabled, a View size button appears in the Size column for easy access. The app now retains selection across different layouts, ensuring previously selected items remain highlighted. It also offers multiple methods for clearing tags from files, including options from the context menu, toolbar, and Command Palette. Additionally, the update features a refreshed OneDrive icon that reflects current branding, and several fixes have been implemented, including resolving issues with extracting tar archives and correcting display problems for BitLocker locked drives.

Winsage

June 7, 2026

4 Windows 11 tools from Build 2026 that signal what’s coming next for the OS

Microsoft announced several key updates at the Build 2026 developer conference, particularly for Windows 11: 1. Coreutils: This suite brings familiar Linux command-line utilities to Windows 11, allowing developers to use commands like ls, cp, and mkdir natively without third-party solutions. It can be installed via GitHub or the Windows Package Manager. 2. WSL Containers: This feature introduces a built-in container runtime for running Linux containers on Windows 11, eliminating the need for external platforms like Docker. It utilizes a command-line tool called "wslc.exe" and allows for OCI-compatible Linux containers. 3. Intelligent Terminal: This feature integrates AI agents into the terminal, providing context-aware assistance for developers. It can be installed via the Microsoft Store or Command Prompt. 4. Windows Developer Configurations: This configuration file for the Windows Package Manager automates the installation of essential developer tools and settings, streamlining the setup process for new development or testing machines.

Tech Optimizer

June 7, 2026

Implementing real-time change data capture with Debezium for Amazon Aurora PostgreSQL and Amazon RDS for PostgreSQL

Amazon Aurora PostgreSQL-Compatible Edition and Amazon RDS for PostgreSQL now support native streaming replication, allowing data changes to flow from source databases. Organizations often struggle to capture and propagate these changes in real time without affecting database performance. Traditional ETL pipelines can introduce significant delays, leading to outdated data and missed opportunities. Debezium is an open-source platform for change data capture (CDC) that monitors databases and streams changes to applications or data pipelines, enabling real-time data synchronization. The CDC solution combines PostgreSQL's logical replication with Debezium's change capture framework, focusing on Amazon Aurora for PostgreSQL. To implement this solution, logical replication must be enabled on Amazon Aurora through DB cluster parameter groups. Debezium connectors monitor the database's Write-Ahead Logging (WAL) via logical replication slots, converting transaction logs into structured event streams. Key components of the solution include: - Amazon Aurora for PostgreSQL as the source database with logical replication enabled. - A Debezium PostgreSQL connector running on MSK Connect for change capture. - Amazon MSK for message streaming. - An Amazon EC2 instance for testing and consuming change events. Steps to implement the solution include: 1. Creating an Amazon Aurora for PostgreSQL DB cluster and enabling logical replication. 2. Creating an Amazon MSK serverless cluster. 3. Setting up an Amazon EC2 instance to install Kafka and connect to the database. 4. Creating a custom plugin for Amazon MSK to replicate changes from RDS for PostgreSQL. 5. Uploading the custom plugin to an Amazon S3 bucket. 6. Storing credentials in AWS Secrets Manager and creating an IAM role for MSK Connect. 7. Testing the solution by verifying data replication and monitoring real-time changes. Monitoring can be done through CloudWatch Logs and the MSK Connect console, addressing common issues like replication slot lag and connector failures. To avoid charges, resources created during the implementation should be deleted in the correct order.

Tech Optimizer

June 6, 2026

PostgreSQL Dump and Restore: The Complete pg_dump Guide

pg_dump is a utility for exporting a PostgreSQL database into a file, which can be restored on the same or different servers. It exports a single database's tables, views, sequences, functions, indexes, triggers, and in-database grants but does not include roles, tablespaces, or server-level configurations. To capture global objects, pg_dumpall --globals-only should be executed prior to the per-database dump. pg_dump requires CONNECT and SELECT privileges on all tables and sequences within the target database, and a dedicated backup role is sufficient for single-database dumps, while superuser access is needed for global objects. pg_dump supports various output formats: plain SQL (.sql), custom binary (.dump), directory of files, and tar archive (.tar), each with different capabilities for restoration and compression. The custom format allows for selective and parallel restoration. For non-interactive use, credentials can be stored in a .pgpass file or passed via the PGPASSWORD environment variable. Restoration methods depend on the dump format: psql is used for plain SQL files, while pg_restore is used for custom and directory formats. The restoration process requires the target database to be created beforehand. Version mismatches between pg_dump and pg_restore can lead to failures, so it's essential to ensure that the binaries are version-matched. In Docker, pg_dump and pg_restore can be executed within containers, but care must be taken to manage credentials and ensure version compatibility. Exit codes from pg_dump should be checked to confirm successful operations.

Winsage

June 6, 2026

I break down 4 new Windows 11 tools from Build 2026 that genuinely stood out and show where the OS is heading

During the Build 2026 developer conference, Microsoft announced several updates for developers using Windows 11. Key announcements included: 1. Coreutils: A utility that enhances the experience of toggling between operating systems, allowing developers to install it via GitHub or the Windows Package Manager with the command "winget install Microsoft.Coreutils." 2. WSL Containers: A built-in container runtime that eliminates the need for third-party platforms like Docker, facilitated by a new command-line tool "wslc.exe" and an accompanying API. 3. Intelligent Terminal: A feature that integrates AI agents into the terminal, providing context-aware assistance directly within the command line. It can be installed via the Microsoft Store or with the command "winget install Microsoft.IntelligentTerminal." 4. Windows Developer Configurations: A configuration file (dev-config.winget) that automates the installation of essential developer tools and settings with a single command, simplifying the setup process for new development or testing machines.