networking

AppWizard
July 24, 2026
India's Cyber Crime Coordination Centre has ordered GitHub to remove Bitchat, an offline messaging app created by Jack Dorsey, due to its use by anti-government demonstrators in Delhi. The order, issued under Section 79(3)(b) of the IT Act, targets three GitHub repositories linked to Bitchat and requires action within three hours. The app enables anonymous communication without registration, posing challenges for law enforcement regarding lawful interception and investigation. Bitchat is a decentralized messaging tool that uses Bluetooth mesh networks for encrypted communication without internet access, and it also supports offline bitcoin transactions, ensuring continuity during outages or shutdowns.
Tech Optimizer
July 21, 2026
The author transitioned from a data analyst role to a data engineer, creating a 12-month self-study roadmap focused on learning by building projects. The first project was a GitHub ETL pipeline, which evolved from a simple Python script to a more complex system using SQLite and GitHub Actions for automation. The author realized that the challenges of data engineering lay in system design and orchestration rather than just writing ETL logic. For the second project, the author built an automated RSS ingestion pipeline to explore engineering decisions in creating a reliable data pipeline. The project emphasized the importance of separating application responsibilities from orchestration tasks, leading to the use of Docker for consistent execution environments and Kestra for orchestration. The author validated each component of the project incrementally: first the Python ETL, then PostgreSQL, followed by Docker, and finally Kestra. This approach ensured that each layer functioned correctly before adding complexity. The final architecture included distinct responsibilities for each component: Python for data processing, PostgreSQL for data storage, Docker for execution, and Kestra for orchestration. The author learned that effective engineering involves considering system reliability, error handling, and observability, shifting the focus from merely writing code to designing entire systems. The experience transformed the author's mindset, emphasizing the importance of incremental building and the separation of execution and orchestration responsibilities.
Winsage
July 18, 2026
Microsoft's July 2026 Patch Tuesday update for Windows 11, identified as KB5101650, addresses 570 vulnerabilities and upgrades Windows 11 to version 25H2 (build 26200.8875) and version 24H2 (build 26100.8875). The update includes critical fixes for BitLocker and File Explorer, targeting vulnerabilities that could enable remote code execution. Microsoft's MDASH tool, which uses AI for vulnerability analysis, has helped uncover 16 vulnerabilities in networking and authentication components. The update also introduces non-security enhancements like Point-in-time restore and improved Bluetooth reliability. Microsoft emphasizes the need for users to install updates quickly due to the rapid evolution of AI technology that benefits malicious actors.
Winsage
July 17, 2026
The Print Spooler flag monitors shared printers and reflects the queue status of print jobs. The win32k flags manage aspects of 32-bit application printing, including font rendering and window management, while GDI+ flags handle metafiles. Printer sharing from a print server allows clients to print in various sizes and formats, cancel jobs, and verify queue status. Printing from 32-bit applications accommodates diverse document types and ensures consistency across different outputs. Document exports maintain font and layout integrity, and EMF+ files can apply effects to large images. Storage and file systems focus on maintaining integrity through NTFS high-risk flags and File History, with a Windows Server 2025 bundle addressing boot processes and BitLocker. NTFS extended attributes are utilized for backup workflows, and unexpected shutdown simulations ensure volume recovery. File History allows for file backups with customizable options. On Server 2025, Secure Boot/BitLocker combinations can be initiated. The HID input flags manage various input devices, while the WinSock bundle includes drivers for Bluetooth and multicast. The NetAdapterCx driver requires extensive enable-disable cycles under Driver Verifier.
AppWizard
July 16, 2026
VK has announced its decision to sell 100% of RuStore to Dmitry Pankrushev, the CEO of Mnogo Prilozheniy. This announcement coincided with recent European Union sanctions against VK. RuStore was established as a domestic alternative for Android users in response to restrictions imposed by Apple and Google after Russia's invasion of Ukraine in 2022. The platform currently features over 110,000 applications and games, attracting 68 million monthly users. VK did not disclose the financial details of the sale or the reasons behind the divestment, while assuring users that operations would continue seamlessly. On the same day, Russian media reported that VK-related applications were removed from Google Play and Huawei's AppGallery, following previous removals from Apple's App Store. RuStore has faced allegations of user tracking and unauthorized access to data, which it denies, stating that its practices are standard for major app storefronts.
AppWizard
July 15, 2026
Creating a realistic plan is essential for regaining momentum in your career after job loss. Key steps include: - Assessing your skills to identify areas for improvement. - Networking with former colleagues and industry contacts to discover unadvertised opportunities. - Updating your resume to reflect relevant experiences and accomplishments. - Considering upskilling through online courses or certifications. - Maintaining a positive mindset and surrounding yourself with supportive individuals.
Tech Optimizer
July 10, 2026
Google Cloud actively participates in the PostgreSQL ecosystem by supporting community-driven events and contributing to open-source initiatives. Recent key events include: - **PGConf.dev 2026**: Featured strategic discussions on logical replication and global index architecture, with a consensus to adopt a deparsing-based approach for DDL replication. Dilip Kumar presented on global indexes. - **PGConf India 2026**: Attracted over 580 participants, featuring various sessions including keynotes and technical talks by Google Cloud contributors. - **PGDay Paris & PGDay France 2026**: Matt Cornillon was involved in organizing PGDay France, with sessions led by him and Yves Colin. - **PGDay FOSDEM 2026**: Focused on AI-assisted workflows in PostgreSQL development, with a technical talk by Matt Cornillon. - **PGConf Belgium 2026**: The session was selected as supplementary material for a database exam, indicating student engagement. - **Nordic PG Day 2026**: Google participated as a Partner-level sponsor and hosted a dedicated booth. - **Swiss PGDay 2026**: Featured a demonstration on processing vectors in PostgreSQL. - **Postgres Conference 2026 San Jose**: Google sponsored the event, with Vikas Arora discussing PostgreSQL adaptations for AI workloads. Community leadership roles included: - Dilip Kumar on the Program Committee for PGConf.dev 2026 and the Paper Selection Committee for PGConf India 2026. - Matt Cornillon on the organization committee for PGDay France, and Yves Colin on the Program Committee. Acknowledgment was given to various contributors for their dedication to PostgreSQL conferences.
Winsage
July 10, 2026
Microsoft has acknowledged that some Windows 11 PCs are facing issues with Secure Boot certificate updates, which may fail to install or be blocked. The company is working with PC manufacturers to develop a patch, while users may need to take proactive measures if their certificates are obstructed. Microsoft has temporarily halted the rollout of Secure Boot for certain devices due to complications, and affected users will receive detailed error messages in the Windows Security app regarding their Secure Boot certificates. Secure Boot certificates issued in 2011 have expired, and Microsoft is replacing them with new certificates issued in 2023. Most modern hardware is already utilizing the new certificates, but some devices may have disabled Secure Boot or faulty firmware. Users can check their Secure Boot status in the Windows Security app. HP has confirmed that Secure Boot updates are being blocked on some of its PCs due to a BitLocker issue, which prevents the installation of new certificates. Microsoft has paused Secure Boot certificate updates for devices affected by known issues while collaborating with manufacturers to identify specific devices or firmware complications. A firmware update will be necessary for affected devices, but it is not yet available. The majority of PCs have received the Secure Boot certificates via Windows Update, but compatibility issues may prevent some devices from receiving the update. Older devices or those not among the OEM’s top-selling models may not receive updates if the UEFI firmware is unsupported. Secure Boot is a security feature required for Windows 11, preventing unauthorized software from executing at boot. While an expired Secure Boot certificate does not stop a PC from functioning, it may limit long-term security protection. Microsoft advises users not to disable Secure Boot, as it would compromise security further.
Winsage
July 5, 2026
Windows 11 Pro for Workstations, available since 2021, is a successor to Windows 10 Pro for Workstations. It focuses on performance and efficiency, lacking consumer bloat such as sponsored shortcuts. Key features include support for the Resilient File System (ReFS), which enhances fault-tolerant storage, and the ability to support up to four CPU sockets and a maximum memory capacity of 6 TB. Networking capabilities include support for SMB Direct client and RDMA, which improve performance for clustered AI inferencing setups. It also supports NVDIMM-N for enhanced workstation applications. Unlike Windows Server, it does not include a native NVMe SSD driver. Windows 11 Pro for Workstations is not available for direct purchase by end-users; it can only be obtained through OEM channels or the Windows for Business channel.
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