How to Set Up Hyper-V Resource Metering on Windows Server 2019 Hyper-V Resource Metering is a feature in Windows Server 2019 that allows administrators to track and measure the resource consumption of virtual machines. This capability is essential for billing in hosted environments, capacity planning, and chargeback reporting. Resource metering collects data on CPU usage, […]
🟠 High ⏱ 5–30 min Last verified: 9 February 2020 Affected versions: 14.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]
How to Use journalctl for Systemd Log Analysis on RHEL 7 On RHEL 7, the traditional syslog infrastructure is complemented — and in many cases replaced — by the systemd journal, managed by systemd-journald. The journalctl command is your primary interface for querying, filtering, and exporting log data collected by this service. Unlike flat text […]
🔴 Critical ⏱ 5–30 min Last verified: 5 February 2020 Affected versions: Debian 9 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]
Go is a statically typed, compiled language developed by Google that excels at building fast, portable command-line tools and system utilities. On RHEL 8, the version available through the default repositories may lag behind the upstream release, so installing directly from the official tarball ensures you get the latest stable toolchain. This tutorial walks you […]
How to Configure Windows Diagnostics and Memory Dumps on Windows Server 2012 R2 When Windows Server 2012 R2 encounters a critical system failure — typically manifesting as a Blue Screen of Death (BSOD) or Stop Error — the operating system can capture a memory dump file containing the contents of physical RAM at the time […]
How to Configure Server Core on Windows Server 2012 R2 Server Core is a minimal installation option for Windows Server 2012 R2 that installs only the essential Windows components needed to support server roles, excluding the full desktop shell, Windows Explorer, Internet Explorer, and most GUI management tools. The result is a significantly reduced attack […]
How to Install Python on Windows Server 2012 R2 Python is one of the most widely used programming languages for DevOps automation, data processing, scripting, web services, and system administration. On Windows Server 2012 R2, Python provides a powerful complement to PowerShell, particularly for cross-platform scripts, data manipulation with pandas or NumPy, REST API clients, […]
ClickHouse is an open-source columnar database management system designed for real-time analytical queries over large datasets. Unlike row-oriented databases such as MySQL or PostgreSQL, ClickHouse stores data by column, allowing it to scan only the columns needed for a query and apply aggressive compression, resulting in query performance orders of magnitude faster for analytical workloads. […]
.NET is Microsoft’s open-source, cross-platform framework for building web APIs, console applications, microservices, and more. RHEL 8 is a fully supported platform for .NET 8, and Microsoft provides a dedicated package repository that integrates cleanly with dnf. This tutorial shows you how to add the Microsoft repository, install the .NET 8 SDK and ASP.NET Core […]
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