Linux

How to Manage Node.js Versions with NVM on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Manage Node.js Versions with NVM on RHEL 7

How to Manage Node.js Versions with NVM on RHEL 7 Managing Node.js versions is one of the most common challenges for developers and system administrators working with JavaScript applications. Different projects often require different Node.js versions—a legacy application might target Node.js 14 while a new microservice targets Node.js 20. Upgrading the system-wide Node.js installation to […]

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Oracle Linux 8 — container-tools:ol8 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — container-tools:ol8 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-4694)

🟡 Medium   ⏱ 10–30 min  Last verified: 26 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4694 Related CVEs: CVE-2020-10749 CVE-2020-10756 CVE-2020-14040 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 118989

Ubuntu 14.04 LTS – NTP sync fails and system clock drifts

🟡 Medium   ⏱ 5–30 min  Last verified: 26 February 2021 Affected versions: Ubuntu 14.04 LTS Ubuntu 14.04 Ubuntu 14.04.6 📖 ~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 […]

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Common Problems 117901

Ubuntu 18.04 Wi-Fi Adapter Not Detected After Reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 26 February 2021 📖 ~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 20.04 — tidy-html5 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — tidy-html5 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 February 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6483-1 Related CVEs: CVE-2021-33391 Upstream summary: Neeraj Pal discovered that HTML Tidy incorrectly handled parsing certain HTML data. If a user or automated system were tricked into parsing specially crafted […]

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openSUSE Tumbleweed — ncat — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ncat — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2019:2198-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-18594 CVE-2018-15173 CVE-2021-3712 Upstream summary: nse_libssh2.cc in Nmap 7.70 is subject to a denial of service condition due to a double free when an SSH […]

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Arch Linux — netbeans — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — netbeans — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202009-7 Related CVEs: CVE-2020-11986 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 12.0-1. Fixed in: 12.0_u1-1. Group: AVG-1221. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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