March 2021 - Page 8 of 69

Common Problems 118045

Ubuntu 18.04 LTS – time drift causes TLS certificate validation errors

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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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Arch Linux — lib32-nss — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — lib32-nss — multiple vulnerabilities (2 CVEs) — 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-201705-21 Related CVEs: CVE-2017-5461 CVE-2021-43527 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 3.27.1-1. Fixed in: 3.30.2-1. Group: AVG-248. Table of contents Symptom & Impact Environment & Reproduction Root […]

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How to Install Cassandra on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Install Cassandra on SLES 15

Introduction This tutorial covers How to Install Cassandra 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 to date: zypper refresh && […]

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Common Problems 116070

Ubuntu 26.04 LTS SSHD Fails Due to Strict File Permissions

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Ubuntu 26.04 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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IBM AIX 7.2 — CVE-2021-20483 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2021-20483 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 25 May 2026 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-20483, IBM Support Bulletin CVE: CVE-2021-20483 NVD summary: IBM Security Identity Manager 6.0.2 is vulnerable to server-side request forgery (SSRF). By sending a specially crafted request, a remote authenticated attacker could exploit […]

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What is NoSQL? — step-by-step DevOps tutorial on Progressive Robot

What is NoSQL?

NoSQL is a term generally used to describe any database management system that uses a data model other than the relational model.

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FreeBSD 12 — anydesk — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — anydesk — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Anydesk — Multiple Vulnerabilities Related CVEs: CVE-2020-13160 Upstream summary: Anydesk reports: AnyDesk before 5.5.3 on Linux and FreeBSD has a format string vulnerability that can be exploited for remote code […]

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Использование интеграции Git в Visual Studio Code — step-by-step DevOps tutorial on Progressive Robot

Использование интеграции Git в Visual Studio Code

Visual Studio Code стал одним из самых популярных редакторов для веб-разработки. Он приобрел такую популярность благодаря множеству встроенных возможностей, включая интеграцию контроля исходного кода, а именно с Git. Git — один из самых популярных и прозрачных поставщиков средств контроля исходного кода, и использование его возможностей из VS Code — это вишенка на торте.

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Ubuntu 14.04 — dovecot — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — dovecot — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4674-2 Related CVEs: CVE-2020-25275 CVE-2020-12100 CVE-2020-12673 CVE-2020-12674 CVE-2019-11500 CVE-2019-7524 CVE-2019-3814 CVE-2017-14461  +3 more Upstream summary: USN-4674-1 fixed a vulnerability in Dovecot. This update provides the corresponding update for Ubuntu 14.04 […]

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