Cpu Memory

How to Install Ceph Storage Cluster on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Ceph Storage Cluster on Debian 13

Introduction This guide explains how to Install Ceph Storage Cluster on Debian 13 on Debian 13 Trixie. Debian Trixie uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 13 install with the […]

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How to Configure SELinux Policies on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Configure SELinux Policies on Oracle Linux 10

Introduction How to Configure SELinux Policies on Oracle Linux 10 on Oracle Linux 10 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 is […]

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How to Configure Jenkins with HTTPS via Nginx on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Jenkins with HTTPS via Nginx on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying configure jenkins with https via nginx both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Jenkins with HTTPS via Nginx on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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How to Back Up MariaDB with mysqldump on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Back Up MariaDB with mysqldump on Debian 13

Introduction How to Back Up MariaDB with mysqldump on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie 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 […]

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Common Problems 124187

Oracle Linux 10 tuned Profile Change Causes Latency Spikes

🟡 Medium   ⏱ 5–30 min  Last verified: 20 September 2025 Affected versions: Oracle Linux 10 📖 ~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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How to Use Bacula Backup on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Use Bacula Backup on Oracle Linux 10

Introduction How to Use Bacula Backup on Oracle Linux 10 on Oracle Linux 10 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 is […]

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How to Install Maven on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Maven on RHEL 10

Introduction This tutorial demonstrates how to Install Maven on RHEL 10 on RHEL 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered RHEL 10 system with the default AppStream repositories enabled. Prerequisites […]

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How to Add and Delete Users on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Add and Delete Users on Oracle Linux 10

Introduction Oracle Linux 10 ships with a stable, security-hardened base that makes deploying add and delete users on oracle linux 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Add and Delete Users on Oracle Linux 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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How to Configure Static File Serving with Nginx on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Static File Serving with Nginx on Debian 13

Introduction Deploying configure static file serving with nginx on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, […]

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How to Install Nginx on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Install Nginx on Oracle Linux 10

Introduction Setting up install nginx on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install Nginx on Oracle Linux 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]

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