February 2023 - Page 18 of 64

Windows Server 2019 — KB5026409 — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5026409 — multiple vulnerabilities (14 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5026409 • MSRC update-guide entry Related CVEs: CVE-2023-28283 CVE-2023-24941 CVE-2023-24903 CVE-2023-24943 CVE-2023-29325 CVE-2023-28251 CVE-2023-24939 CVE-2023-24900  +6 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]

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How to Configure Windows Server 2022 Initial Settings — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Windows Server 2022 Initial Settings

How to Configure Windows Server 2022 with PowerShell PowerShell is the primary management interface for Windows Server 2022. Whether you are managing a single server or hundreds, understanding how to configure and use PowerShell effectively is a prerequisite for any Windows Server administrator. This guide covers execution policy, running scripts correctly, essential cmdlets, remoting, service […]

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Cara Mengamankan Nginx dengan Let's Encrypt pada Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Cara Mengamankan Nginx dengan Let’s Encrypt pada Ubuntu 20.04

Let’s Encrypt adalah Otoritas Sertifikat (CA) yang menyediakan cara mudah untuk memperoleh dan menginstal sertifikat TLS/SSL gratis, yang dengan demikian mengaktifkan HTTPS terenkripsi pada server web. Ini menyederhanakan proses dengan menyediakan klien perangkat lunak, Certbot, yang berusaha mengotomatiskan sebagian besar (jika bukan semua) langkah yang diperlukan. Dalam tutorial ini, Anda akan menggunakan Certbot untuk memperoleh sertifikat SSL gratis untuk Nginx pada Ubuntu 20.04

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Oracle Linux 9 — .NET 9.0 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — .NET 9.0 security, bug fix, and — enhancement update — new behaviour and fixes

🟠 High   ⏱ 15–60 min  Last verified: 20 February 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-2668 Related CVEs: CVE-2025-24070 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Common Problems 117487

Ubuntu 20.04 LTS – systemd service enters crash loop after package update – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 February 2023 Affected versions: Ubuntu 20.04 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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Amazon Linux 2 — kernel-livepatch-4.14.294-220.533 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.294-220.533 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2023-095 Related CVEs: CVE-2022-3524 CVE-2022-3564 CVE-2022-3621 CVE-2022-3649 Upstream summary: A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this vulnerability is the function ipv6_renew_options […]

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Common Problems 114574

Filesystem Full Under /var on RHEL 9

🟡 Medium   ⏱ 5–30 min  Last verified: 20 February 2023 📖 ~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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How to Set Up Terraform on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up Terraform on Oracle Linux 9

Introduction This tutorial demonstrates how to Set Up Terraform on Oracle Linux 9 on Oracle Linux 9. 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 9 system with the default […]

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