Boot Startup

How to Configure auditd for Security Event Logging on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure auditd for Security Event Logging on RHEL 8

The Linux Audit daemon (auditd) ships enabled by default on RHEL 8 and provides a kernel-level event logging subsystem capable of recording file access, system calls, user logins, and privilege escalation. Unlike application-level logging, audit records are written directly by the kernel and are tamper-evident, making them suitable for compliance frameworks such as PCI-DSS, HIPAA, […]

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How to Configure DRBD for High Availability on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure DRBD for High Availability on Oracle Linux 9

Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying configure drbd for high availability on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure DRBD for High Availability on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, and the […]

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How to Configure Mandatory Integrity Control on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure Mandatory Integrity Control on Oracle Linux 9

Introduction Setting up configure mandatory integrity control on oracle linux 9 on a Oracle Linux 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Mandatory Integrity Control on Oracle Linux 9, with all the commands you need, the SELinux and firewalld considerations to […]

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How to Set Up Database Backups with Percona XtraBackup on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up Database Backups with Percona XtraBackup on Oracle Linux 9

Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying set up database backups with percona xtrabackup on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Database Backups with Percona XtraBackup on Oracle Linux 9, including dnf module streams where applicable, systemd […]

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How to Integrate AIX with Active Directory on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Integrate AIX with Active Directory 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 integrate aix with active directory on ibm aix 7.2 […]

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How to Set Up Data Deduplication on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up Data Deduplication on Windows Server 2012 R2

How to Set Up Data Deduplication on Windows Server 2012 R2 Data Deduplication is a Windows Server 2012 R2 role service that reduces storage consumption by identifying and eliminating redundant data patterns across files stored on NTFS volumes. Unlike traditional single-instance storage, the deduplication engine works post-process — it analyses data after it has been […]

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Common Problems 117602

Ubuntu 20.04 LTS User Login Loop at GDM

🟡 Medium   ⏱ 5–30 min  Last verified: 7 May 2023 Affected versions: 20.04 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 HAProxy SSL Termination on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure HAProxy SSL Termination on Oracle Linux 9

Introduction How to Configure HAProxy SSL Termination 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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Common Problems 114629

RHEL 9: tuned Profile Not Applied and Performance Regressions

🟡 Medium   ⏱ 5–30 min  Last verified: 7 May 2023 📖 ~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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Common Problems 113584

Windows Server 2016 – Docker service fails to start after reboot on container host – Fix & Prevention (FIX-PREVENTION-2)

🟠 High   ⏱ 5–30 min  Last verified: 7 May 2023 Affected versions: Windows Server 2016 📖 ~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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