Logging Monitoring

Common Problems 112900

Windows Server 2016 — Boot stops with winload.efi missing or corrupt — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 24 December 2020 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 […]

Read more
How to Configure GRE Tunnel Interfaces on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure GRE Tunnel Interfaces on Windows Server 2016

How to Set Up Windows Server 2016 GRE Tunnel Interface Generic Routing Encapsulation (GRE) is a tunnelling protocol that encapsulates a wide variety of network layer protocols inside virtual point-to-point links. Windows Server 2016 introduces native GRE tunnel support through the RAS Gateway, enabling organisations to create lightweight, stateless tunnels between gateway endpoints without the […]

Read more
Oracle Linux 8 — kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel — vulnerability — patch and remediation guide (ELSA-2019-3871)

🟠 High   ⏱ 15–60 min  Last verified: 23 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3871 Related CVEs: CVE-2019-0155 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Oracle Linux 8 — unbound security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — unbound security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-1853)

🟡 Medium   ⏱ 10–30 min  Last verified: 23 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1853 Related CVEs: CVE-2019-25038 CVE-2019-25039 CVE-2019-25037 CVE-2019-25041 CVE-2019-25032 CVE-2019-25036 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

Read more
Common Problems 119152

Ubuntu 14.04 LTS dpkg interrupted and package database broken

🟡 Medium   ⏱ 5–30 min  Last verified: 23 December 2020 📖 ~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 118962

Ubuntu 14.04 LTS NTP drift causes significant system clock skew

🟡 Medium   ⏱ 5–30 min  Last verified: 23 December 2020 Affected versions: 14.04 📖 ~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 […]

Read more
Common Problems 118441

Ubuntu 16.04 LTS – initramfs unpacking failed during kernel update – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 23 December 2020 Affected versions: Ubuntu 16.04 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 […]

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

How to Configure SSH 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 ssh on ibm aix 7.1 on IBM AIX […]

Read more
How to Set Up Two-Factor Authentication on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Set Up Two-Factor 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 set up two-factor authentication on ibm aix 7.2 on […]

Read more
How to Set Up a Firewall with firewalld on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up a Firewall with firewalld on Oracle Linux 8

Introduction This tutorial demonstrates how to Set Up a Firewall with firewalld on Oracle Linux 8 on Oracle Linux 8. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 8 system […]

Read more
CHAT