Database

Common Problems 118587

Ubuntu 16.04 LTS severe swap thrashing and performance collapse

🟡 Medium   ⏱ 5–30 min  Last verified: 19 August 2019 📖 ~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 […]

Read more
How to Use AIX WPAR Manager on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use AIX WPAR Manager 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 use aix wpar manager on ibm aix 7.1 on […]

Read more
How to Configure PowerVS Network Connectivity on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure PowerVS Network Connectivity 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 powervs network connectivity on ibm aix 7.2 on […]

Read more
How to Tune Network Parameters with no on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Tune Network Parameters with no 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 tune network parameters with no on ibm aix 7.2 […]

Read more
How to Install and Configure Postfix Mail Server on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install and Configure Postfix Mail Server on RHEL 8

Postfix is a high-performance, security-focused Mail Transfer Agent (MTA) that ships with RHEL 8 and is the default replacement for Sendmail. It handles the delivery of outbound email and, when configured correctly, accepts inbound mail for local users. Understanding Postfix is foundational for any RHEL administrator who needs to send system alerts, application notifications, or […]

Read more
How to Install MariaDB on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install MariaDB on RHEL 8

MariaDB is a community-developed, fully open-source relational database management system that was forked from MySQL and remains highly compatible with it. On RHEL 8, MariaDB is conveniently available through the AppStream module system, allowing you to install a specific stream version without adding third-party repositories. This tutorial covers installing MariaDB 10.5 via AppStream, starting and […]

Read more
How to Set Up System Center on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Set Up System Center on Windows Server 2016

How to Configure Windows Server 2016 System Center Microsoft System Center is a suite of management products designed to provide unified monitoring, configuration management, data protection, and virtualization management for Windows-based environments. The main components are System Center Operations Manager (SCOM), System Center Configuration Manager (SCCM), System Center Data Protection Manager (DPM), System Center Virtual […]

Read more
How to Configure Windows Performance Monitor (perfmon) on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Windows Performance Monitor (perfmon) on Windows Server 2019

Introduction to Windows Performance Monitor on Windows Server 2019 Windows Performance Monitor (perfmon) is a built-in Windows Server 2019 tool that provides real-time and historical monitoring of hundreds of system performance counters, including CPU, memory, disk, network, and application-specific metrics. Perfmon supports Data Collector Sets for capturing performance data over time, which is invaluable for […]

Read more
How to Set Up SSL/TLS Certificates on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Set Up SSL/TLS Certificates 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 set up ssl/tls certificates on ibm aix 7.1 on […]

Read more
How to Audit Linux Security with Lynis on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Audit Linux Security with Lynis on RHEL 7

How to Audit Linux Security with Lynis on RHEL 7 Maintaining a secure Linux server requires more than installing updates and setting strong passwords. A comprehensive security audit reveals configuration weaknesses, missing hardening measures, and potential vulnerabilities before attackers can exploit them. Lynis is an open-source security auditing tool that performs an in-depth scan of […]

Read more
CHAT