Logging Monitoring

How to Configure SMB Shares with NTFS Permissions on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure SMB Shares with NTFS Permissions on Windows Server 2016

How to Configure SMB File Shares and NTFS Permissions on Windows Server 2016 Server Message Block (SMB) is the primary file sharing protocol used in Windows environments, and NTFS (New Technology File System) permissions provide granular access control to files and folders on Windows volumes. Understanding how to correctly configure both SMB share permissions and […]

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Oracle Linux 8 — varnish:6 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — varnish:6 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-4756)

🟡 Medium   ⏱ 10–30 min  Last verified: 27 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4756 Related CVEs: CVE-2019-20637 CVE-2019-15892 CVE-2020-11653 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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Common Problems 121593

Debian 9: PostgreSQL fails because WAL partition is full

🔴 Critical   ⏱ 5–30 min  Last verified: 27 October 2020 Affected versions: Debian 9 📖 ~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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Common Problems 121474

Debian 9 – apt update shows NO_PUBKEY and rejects repository signatures

🟠 High   ⏱ 5–30 min  Last verified: 27 October 2020 Affected versions: Debian 9 📖 ~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 Set Up the ELK Stack on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up the ELK Stack on Oracle Linux 8

Introduction This tutorial demonstrates how to Set Up the ELK Stack 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 with […]

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Common Problems 118503

Ubuntu 16.04 LTS – NTP drift causes clock skew and auth failures – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 27 October 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 […]

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Common Problems 117964

Ubuntu 18.04 root partition out of disk space

🟡 Medium   ⏱ 5–30 min  Last verified: 27 October 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 […]

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Ubuntu 16.04 — libmediainfo — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libmediainfo — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 October 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5237-1 Related CVEs: CVE-2020-15395 CVE-2020-26797 CVE-2019-11372 CVE-2019-11373 Upstream summary: It was discovered that MediaInfoLib incorrectly handled certain specially crafted files. An attacker could possibly use this issue to cause a […]

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How to Configure IIS Web Server on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure IIS Web Server on Windows Server 2019

How to Configure IIS Web Server on Windows Server 2019 Internet Information Services (IIS) 10 on Windows Server 2019 is a full-featured, modular web server platform supporting HTTP, HTTPS, FTP, FTPS, and WebDAV. IIS powers millions of websites and web applications worldwide and integrates tightly with the .NET framework, ASP.NET Core, PHP, and Node.js via […]

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SLES 15 — libjpeg8 — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libjpeg8 — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 27 October 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:1957-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-17541 CVE-2019-2201 CVE-2020-35538 CVE-2018-19644 CVE-2014-9092 CVE-2017-15232 CVE-2018-1152 CVE-2018-11813  +4 more Upstream summary: Libjpeg-turbo all version have a stack-based buffer overflow in the "transform" component. A […]

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