Database

How to Boot into Maintenance Mode on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Boot into Maintenance Mode 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 boot into maintenance mode on ibm aix 7.2 on […]

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How to Install Open Source Tools via AIX Toolbox on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Install Open Source Tools via AIX Toolbox 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 install open source tools via aix toolbox on ibm […]

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How to Set Up Windows Defender Application Control on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Windows Defender Application Control on Windows Server 2019

Introduction to Windows Defender Application Control Windows Defender Application Control (WDAC) is Microsoft’s next-generation application control technology, introduced in Windows 10 and fully supported on Windows Server 2019. Unlike AppLocker, which operates in user space, WDAC policies are enforced by the Windows kernel and can be protected by Virtualization-Based Security (HVCI). WDAC supersedes Device Guard […]

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How to Install Symfony on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Symfony on RHEL 8

Symfony is a mature, enterprise-grade PHP framework and a collection of reusable components that power many of the world’s largest PHP applications, including Drupal and parts of Laravel itself. It emphasises strict standards, comprehensive testing support, and long-term support releases that align well with RHEL 8’s stability-first philosophy. This tutorial covers installing the Symfony CLI […]

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Common Problems 114908

RHEL 8 RPM Database Locked During Automated Updates

🟡 Medium   ⏱ 5–30 min  Last verified: 3 November 2021 📖 ~2 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 Monitor MySQL with Prometheus on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Monitor MySQL with Prometheus on FreeBSD 13

Introduction This guide explains how to Monitor MySQL with Prometheus on FreeBSD 13 on FreeBSD 13. 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 […]

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How to Set Up Active Directory Domain Services on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Active Directory Domain Services on Windows Server 2019

How to Set Up Active Directory Domain Services on Windows Server 2019 Active Directory Domain Services (AD DS) is the cornerstone of Windows enterprise identity management. It provides centralized authentication and authorization using Kerberos and LDAP, enables Group Policy for configuration management, and creates a hierarchical structure of domains, trees, and forests. This guide walks […]

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How to Configure PAM Authentication on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure PAM Authentication 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 configure pam authentication on ibm aix 7.2 on IBM […]

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How to Use HMC to Manage Power Systems on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use HMC to Manage Power Systems 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 hmc to manage power systems on ibm aix […]

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How to Configure MySQL Primary-Replica Replication on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure MySQL Primary-Replica Replication on RHEL 8

MySQL primary-replica replication allows one database server (the primary) to stream changes to one or more replica servers in near real-time, providing read scalability and a warm standby for disaster recovery. On RHEL 8, the setup involves editing MySQL configuration files on both servers, creating a dedicated replication user, and issuing a handful of SQL […]

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