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How to Install pgAdmin 4 on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install pgAdmin 4 on RHEL 9

pgAdmin 4 is the official, full-featured web-based administration and development platform for PostgreSQL. It provides a graphical interface for managing databases, schemas, tables, views, functions, roles, and server connections; a SQL query editor with syntax highlighting and query execution plans; a visual schema designer; backup and restore wizards; and monitoring dashboards for server statistics. pgAdmin […]

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Common Problems 116626

Ubuntu 24.04 LTS – NFS stale file handle errors on mounted share – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 12 November 2025 Affected versions: Ubuntu 24.04 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 […]

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How to Configure Kubernetes RBAC on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Configure Kubernetes RBAC on SLES 16

Introduction This tutorial covers How to Configure Kubernetes RBAC on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Disable Swap swapoff -a sed -i ‘/ swap / […]

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Common Problems 116475

Ubuntu 24.04 LTS – snap refresh fails repeatedly – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 12 November 2025 Affected versions: Ubuntu 24.04 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 […]

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Common Problems 116441

Excessive Swap Usage on Ubuntu 24.04 LTS

🟡 Medium   ⏱ 5–30 min  Last verified: 12 November 2025 Affected versions: 24.04 📖 ~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 Install phpMyAdmin on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install phpMyAdmin on RHEL 9

phpMyAdmin is a web-based graphical administration interface for MySQL and MariaDB databases. It allows developers and DBAs to manage databases, tables, rows, users, and permissions through a browser without needing to use the command-line MySQL client. phpMyAdmin is especially useful for non-technical users who need to browse data, run queries, import/export CSV or SQL files, […]

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How to Add a Sudo User on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Add a Sudo User on SLES 16

Introduction This tutorial covers How to Add a Sudo User on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up to date: zypper […]

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

How to Install Docker Compose on Oracle Linux 10

Introduction How to Install Docker Compose 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 Manage Users and Groups with useradd on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Manage Users and Groups with useradd on Oracle Linux 10

Introduction This tutorial demonstrates how to Manage Users and Groups with useradd on Oracle Linux 10 on Oracle Linux 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 Oracle Linux 10 system […]

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How to Configure Unattended Upgrades on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Monitor System Resources on Ubuntu 24.04

Knowing how your server uses CPU, memory, disk, and network is essential for capacity planning and troubleshooting. This guide covers the most useful monitoring commands and tools on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges Step 1 – Quick Overview with top […]

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