Networking

How to Configure Alertmanager on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Alertmanager on Debian 9

Introduction How to Configure Alertmanager 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 tutorial […]

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How to Set Up NFS High Availability on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up NFS High Availability on Oracle Linux 8

Introduction How to Set Up NFS High Availability on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting […]

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How to Configure Resource Limits in Kubernetes on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Resource Limits in Kubernetes on Oracle Linux 8

Introduction How to Configure Resource Limits in Kubernetes on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting […]

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Common Problems 119141

Ubuntu 14.04 LTS JVM processes crash with out of memory errors

🟠 High   ⏱ 5–30 min  Last verified: 29 September 2020 Affected versions: 14.04 📖 ~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 […]

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How to Configure LVM on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure LVM on Oracle Linux 8

Introduction Setting up configure lvm on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure LVM on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]

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How to Configure Hyper-V Generation 2 VMs on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Hyper-V Generation 2 VMs on Windows Server 2012 R2

How to Configure Hyper-V Generation 2 VMs on Windows Server 2012 R2 Windows Server 2012 R2 introduced Generation 2 virtual machines as a significant advancement over the legacy Generation 1 VM architecture. Generation 2 VMs use a modern firmware model based on UEFI, support Secure Boot, replace IDE and legacy network adapters with purely synthetic […]

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How to Set Up Log Analytics on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Log Analytics on Windows Server 2019

Introduction to Log Analytics on Windows Server 2019 Azure Monitor Log Analytics is a cloud-hosted log management and analytics service that collects, stores, and analyzes log data from Windows Server 2019 and other sources. When Log Analytics is connected to Windows Server 2019, it ingests Windows Event Logs, performance counters, IIS logs, Syslog data, and […]

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How to Configure PHP Error Logging on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure PHP Error Logging on Oracle Linux 8

Introduction How to Configure PHP Error Logging on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration […]

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How to Set Up OpenTelemetry Collector on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up OpenTelemetry Collector on RHEL 7

How to Set Up OpenTelemetry Collector on RHEL 7 OpenTelemetry is the emerging industry standard for collecting telemetry data — traces, metrics, and logs — from applications and infrastructure. The OpenTelemetry Collector acts as a vendor-agnostic pipeline component that receives telemetry from instrumented applications, processes it, and exports it to one or more backends such […]

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Common Problems 113434

Windows Server 2016 – Cluster Shared Volume remains in redirected mode – Fix & Prevention (FIX-PREVENTION-2)

🟠 High   ⏱ 5–30 min  Last verified: 27 September 2020 Affected versions: Windows Server 2016 📖 ~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 […]

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