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How to Set Up Two-Factor Authentication with Google Authenticator on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Set Up Two-Factor Authentication with Google Authenticator on SLES 15

Introduction This tutorial covers How to Set Up Two-Factor Authentication with Google Authenticator on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up […]

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How To Style React Components — step-by-step Javascript tutorial on Progressive Robot

How To Style React Components

In this tutorial, you’ll learn three different ways to style React components: plain Cascading Style Sheets (CSS), inline styles with JavaScript-style objects, and JSS, a library for creating CSS with JavaScript. To illustrate these methods, you’ll build an example Alert component that will either show a success style or an error style depending on the prop. You will then refactor it using each of the styling options to see the similarities and differences between each.

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Oracle Linux 8 — nodejs:10 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:10 — vulnerability — patch and remediation guide (ELSA-2020-0579)

🟠 High   ⏱ 15–60 min  Last verified: 30 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0579 Related CVEs: CVE-2019-15604 CVE-2019-15605 CVE-2019-15606 CVE-2019-16776 CVE-2019-16775 CVE-2019-16777 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Implement Network Segmentation on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Implement Network Segmentation on Oracle Linux 8

Introduction How to Implement Network Segmentation on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]

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Oracle Linux 8 — systemd — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — systemd — security and stability fixes — required update (ELSA-2019-0990)

🟡 Medium   ⏱ 10–30 min  Last verified: 29 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-0990 Related CVEs: CVE-2019-6454 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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Debian 10 — json-c — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — json-c — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 December 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-12762 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 118588

Cron jobs not running under expected user context

🟡 Medium   ⏱ 5–30 min  Last verified: 29 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 […]

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