authorization

How to Add and Delete Users on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Add and Delete Users on RHEL 8

Managing user accounts is one of the most fundamental Linux system administration tasks. On RHEL 8, the standard tools — useradd, usermod, userdel, and groupadd — are all available out of the box and work the same way across RHEL-compatible distributions. This guide covers creating users with meaningful options, setting and changing passwords, modifying existing […]

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How to Manage Storage with Parted on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Manage Storage with Parted on Oracle Linux 9

Introduction How to Manage Storage with Parted on Oracle Linux 9 on Oracle Linux 9 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 Kubernetes Ingress with Nginx Ingress Controller on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up Kubernetes Ingress with Nginx Ingress Controller on RHEL 8

Kubernetes Ingress resources give you a single entry point for routing external HTTP and HTTPS traffic to services inside your cluster. On RHEL 8, the Nginx Ingress Controller is a popular choice because it integrates cleanly with bare-metal deployments and supports TLS termination, name-based virtual hosting, and path-based routing out of the box. This tutorial […]

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How to Configure Oracle Linux 9 for Container Workloads — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure Oracle Linux 9 for Container Workloads

Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying configure oracle linux 9 for container workloads both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Oracle Linux 9 for Container Workloads, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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Oracle Linux 8 — mod_auth_openidc:2.3 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — mod_auth_openidc:2.3 — vulnerability — patch and remediation guide (ELSA-2023-4418)

🟠 High   ⏱ 15–60 min  Last verified: 15 February 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-4418 Related CVEs: CVE-2023-37464 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Install Icinga2 on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Install Icinga2 on Oracle Linux 9

Introduction How to Install Icinga2 on Oracle Linux 9 on Oracle Linux 9 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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How to Set Up a Certificate Authority on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up a Certificate Authority on Oracle Linux 9

Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying set up a certificate authority on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up a Certificate Authority on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, and the […]

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How to Configure Lightweight User Environments with WPARs on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Lightweight User Environments with WPARs on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure lightweight user environments with wpars on ibm aix […]

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How to Configure LVM Thin Provisioning on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure LVM Thin Provisioning on Debian 9

Introduction Deploying configure lvm thin provisioning on debian 9 on a Debian 9 Stretch 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 Ensure Debian […]

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How to Configure Windows Server 2022 Automatic Updates — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Windows Server 2022 Automatic Updates

How to Configure GitHub Actions Self-Hosted Runner on Windows Server 2022 GitHub Actions provides hosted runners on Linux, macOS, and Windows, but for workflows that require custom software, Windows-specific build tools, access to private networks, or control over the execution environment, a self-hosted runner on Windows Server 2022 is the right choice. Self-hosted runners connect […]

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