Firewall

How to Set Up FluxCD on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up FluxCD on Oracle Linux 8

Introduction How to Set Up FluxCD 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 is […]

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How to Use AIX Security Compliance Assessment on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use AIX Security Compliance Assessment on IBM AIX 7.2

Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use aix security compliance assessment on ibm aix 7.2 […]

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How to Install Docker Engine on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install Docker Engine on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying install docker engine on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Docker Engine on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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Common Problems 115410

RPM Database Locked or Corrupted During Updates

🟡 Medium   ⏱ 5–30 min  Last verified: 12 January 2021 📖 ~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 References & Further […]

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How to Configure Apache with mod_security on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Apache with mod_security on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying configure apache with mod_security on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Apache with mod_security on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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How to Install and Configure Cassandra on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure Cassandra on Debian 9

Introduction How to Install and Configure Cassandra 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. […]

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Common Problems 115560

rc.local Script Not Executing at Boot

🟡 Medium   ⏱ 5–30 min  Last verified: 11 January 2021 📖 ~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 References & Further […]

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How to Configure RRAS on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure RRAS on Windows Server 2012 R2

How to Configure RRAS on Windows Server 2012 R2 Routing and Remote Access Service (RRAS) on Windows Server 2012 R2 is a multi-purpose networking role that provides routing, VPN connectivity, and dial-up access services. RRAS can function as a software router supporting static and dynamic routing protocols (RIP v2 and OSPF via add-ons), as a […]

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How to Install MariaDB on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install MariaDB on Oracle Linux 8

Introduction How to Install MariaDB 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 is reproducible […]

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