Storage Disk

How to Set Up IBM Installation Manager on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Set Up IBM Installation 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 set up ibm installation manager on ibm aix 7.1 […]

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How to Configure Postfix Mail Server on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Postfix Mail Server on Debian 9

Introduction This guide explains how to Configure Postfix Mail Server on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with the […]

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How to Configure DHCP Server on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure DHCP Server 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 dhcp server on ibm aix 7.2 on IBM […]

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How to Set Up pgBouncer Connection Pooler on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up pgBouncer Connection Pooler on Debian 9

Introduction How to Set Up pgBouncer Connection Pooler 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 […]

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

How to Use Terraform with IBM 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 terraform with ibm power systems on ibm aix […]

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How to Install and Use Fluentd for Log Aggregation on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install and Use Fluentd for Log Aggregation on RHEL 8

Fluentd is a unified logging layer that collects logs from multiple sources, parses and transforms them, and forwards the output to destinations such as Elasticsearch, S3, or another Fluentd aggregator. On RHEL 8, the Treasure Data package td-agent provides a supported, RPM-based distribution of Fluentd that integrates with systemd and works alongside your existing application […]

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Common Problems 117986

Ubuntu 18.04 LTS – root filesystem remounts read-only after ext4 journal errors – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 16 December 2019 Affected versions: Ubuntu 18.04 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 Deploy a Node.js App with PM2 on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Deploy a Node.js App with PM2 on FreeBSD 12

Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up deploy a node.js app with pm2 on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from […]

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How to Configure IBM DS8000 Storage on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure IBM DS8000 Storage 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 ibm ds8000 storage on ibm aix 7.2 on […]

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How to Configure SSL/TLS on Nginx on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure SSL/TLS on Nginx on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure ssl/tls on nginx on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and […]

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