Introduction How to Configure Swap Space on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. This […]
How to Set Up Prometheus Windows Exporter on Windows Server 2012 R2 The Prometheus Windows Exporter (formerly known as wmi_exporter) is an open-source metrics collection agent that exposes Windows performance counters, WMI data, and system metrics in the Prometheus exposition format over HTTP. This makes Windows Server 2012 R2 natively scrapable by Prometheus, enabling integration […]
MariaDB is a community-developed, fully open-source relational database management system that was forked from MySQL and remains highly compatible with it. On RHEL 8, MariaDB is conveniently available through the AppStream module system, allowing you to install a specific stream version without adding third-party repositories. This tutorial covers installing MariaDB 10.5 via AppStream, starting and […]
How to Configure Windows Server 2016 System Center Microsoft System Center is a suite of management products designed to provide unified monitoring, configuration management, data protection, and virtualization management for Windows-based environments. The main components are System Center Operations Manager (SCOM), System Center Configuration Manager (SCCM), System Center Data Protection Manager (DPM), System Center Virtual […]
How to Set Up Varnish Cache as a Reverse Proxy on RHEL 7 Varnish Cache is a high-performance HTTP reverse proxy and caching accelerator designed to sit in front of your web server. When a visitor requests a page, Varnish checks whether it holds a fresh cached copy. If it does, the response is served […]
🟠 High ⏱ 5–30 min Last verified: 13 August 2019 Affected versions: 16.04 📖 ~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 & Cross-Refs […]
Introduction to Windows Performance Monitor on Windows Server 2019 Windows Performance Monitor (perfmon) is a built-in Windows Server 2019 tool that provides real-time and historical monitoring of hundreds of system performance counters, including CPU, memory, disk, network, and application-specific metrics. Perfmon supports Data Collector Sets for capturing performance data over time, which is invaluable for […]
Introduction Deploying manage users and groups on freebsd 12 on a FreeBSD 12 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard […]
Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure nginx as a reverse proxy on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from […]
Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to tune aix for oracle database performance on ibm aix […]
