Boot Startup

How to Configure Cloud-Init on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Cloud-Init 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 configure cloud-init on ibm aix 7.1 on IBM AIX […]

Read more
How to Configure Docker Logging Drivers on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Docker Logging Drivers on Debian 9

Introduction This guide explains how to Configure Docker Logging Drivers 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 […]

Read more
Common Problems 117897

Ubuntu 18.04 Boot Stuck at GRUB Prompt After Update

🟡 Medium   ⏱ 5–30 min  Last verified: 22 December 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 Set Up Capistrano Deployment on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Capistrano Deployment on Debian 9

Introduction Deploying set up capistrano deployment on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you […]

Read more
How to Configure Apache2 Virtual Hosts on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Apache2 Virtual Hosts on Debian 9

Introduction Deploying configure apache2 virtual hosts on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian […]

Read more
How to Configure Micro-Partitioning on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Micro-Partitioning 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 configure micro-partitioning on ibm aix 7.1 on IBM AIX […]

Read more
Common Problems 118392

Ubuntu 16.04 Boot Stuck at GRUB Prompt After Update

🟡 Medium   ⏱ 5–30 min  Last verified: 20 December 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
Common Problems 113551

Windows Server 2012 R2 — SQL Server service account permission regression — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 December 2019 Affected versions: Windows Server 2012 R2 📖 ~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 […]

Read more
How to Perform a System Security Audit with auditd on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Perform a System Security Audit with auditd on RHEL 8

The Linux Audit system (auditd) provides a comprehensive security logging framework that records system calls, file accesses, and user actions at the kernel level. On RHEL 8, auditd is installed and enabled by default, making it a foundational component of any security compliance strategy. Whether meeting requirements for PCI-DSS, HIPAA, or internal policy, audit rules […]

Read more
Common Problems 119064

Ubuntu 14.04 LTS rsyslog Stops Writing Logs

🟡 Medium   ⏱ 5–30 min  Last verified: 18 December 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
CHAT