Cpu Memory

How to Set Up GlusterFS Distributed Storage on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up GlusterFS Distributed Storage on FreeBSD 15

Introduction Deploying set up glusterfs distributed storage on a FreeBSD 15 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 base + […]

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How to Set Up a Local Container Registry with Harbor on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up a Local Container Registry with Harbor on RHEL 9

Harbor is an enterprise-grade open-source container registry that extends the basic Docker Registry with role-based access control, vulnerability scanning, image signing, and replication across multiple registries. While Docker’s official registry:2 image is suitable for simple use cases, Harbor is purpose-built for teams that need audit logs, project-level isolation, and automated security scanning before images reach […]

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How to Install Cockpit Web Console on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Cockpit Web Console on RHEL 10

Introduction How to Install Cockpit Web Console on RHEL 10 on RHEL 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 reproducible […]

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Common Problems 115953

Fix GNOME Shell High CPU Usage on Ubuntu 26.04 LTS

🟡 Medium   ⏱ 5–30 min  Last verified: 14 May 2026 Affected versions: 26.04 📖 ~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 iptables-nft Rules on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure iptables-nft Rules on RHEL 10

Introduction This tutorial demonstrates how to Configure iptables-nft Rules 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. […]

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How to Set Up Nagios on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up Nagios on FreeBSD 15

Introduction FreeBSD 15 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up nagios on FreeBSD 15 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. This guide walks […]

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How to Configure ezjail on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure ezjail on FreeBSD 15

Introduction How to Configure ezjail on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, and […]

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How to Install MySQL 8 on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install MySQL 8 on FreeBSD 15

Introduction This guide explains how to Install MySQL 8 on FreeBSD 15 on FreeBSD 15. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege […]

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How to Set Up Nginx as a Reverse Proxy on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up Nginx as a Reverse Proxy on FreeBSD 15

Introduction How to Set Up Nginx as a Reverse Proxy on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, […]

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How to Set Up WireGuard VPN on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Set Up WireGuard VPN on RHEL 10

Introduction This tutorial demonstrates how to Set Up WireGuard VPN 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 […]

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