How To Restrict Log In Capabilities of Users on Ubuntu
This guide will cover how to restrict the log in capabilities of users on a Linux system. This is accomplished through manipulating authentication files with tools like usermod and passwd.
Arch Linux — gitlab — multiple vulnerabilities (20 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-202104-1 Related CVEs: CVE-2021-28965 CVE-2021-22205 CVE-2021-22192 CVE-2018-18649 CVE-2018-18648 CVE-2018-18646 CVE-2018-18645 CVE-2018-18643 +12 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 13.10.2-1. Fixed in: 13.10.3-1. Group: AVG-1822. Table of contents […]
Ubuntu 20.04 — whoopsie — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 5 August 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4450-1 Related CVEs: CVE-2020-11937 CVE-2020-12135 CVE-2020-15570 Upstream summary: Seong-Joong Kim discovered that Whoopsie incorrectly handled memory. A local attacker could use this issue to cause Whoopsie to consume memory, resulting […]
How To Install OpenEMR on Ubuntu 20.04 with a LAMP Stack (Apache, MySQL, PHP)
In this tutorial, you will install OpenEMR on Ubuntu 20.04 along with its dependencies Apache, MySQL, and PHP.
Установка и обеспечение безопасности Redis в Ubuntu 18.04
Предыдущая версия данного обучающего руководства была написана Джастином Эллингвудом Redis — это быстрое хранилище данных типа «ключ‑значение», известное своей гибкостью, производительностью и…
Oracle Linux 8 — grafana security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-1659)
🟡 Medium ⏱ 10–30 min Last verified: 4 August 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-1659 Related CVEs: CVE-2019-15043 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Ubuntu 20.04 Printer Not Detected
🟡 Medium ⏱ 5–30 min Last verified: 4 August 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 […]
RHEL 7 firewalld Masquerade Disabled on NAT Gateway
🟠 High ⏱ 5–30 min Last verified: 4 August 2021 Affected versions: RHEL 7 📖 ~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 & […]
AlmaLinux 8 — dbxtool — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALBA-2021:0564 Upstream summary: The dbxtool packages provide a command line utility and a one-shot systemd service for applying UEFI Secure Boot DBX updates. Bug Fix(es) and Enhancement(s): * [Dell AlmaLinux 8.2 BUG] […]
Arch Linux — rizin — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read • Source: Arch ASA ASA-202204-4 Related CVEs: CVE-2021-43814 CVE-2021-4022 Upstream summary: Type: multiple issues. Status: Fixed. Affected: 0.3.1-1. Fixed in: 0.3.2-1. Group: AVG-2590. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]
