Security Hardening

Ubuntu 18.04 — zziplib — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — zziplib — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 November 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6298-1 Related CVEs: CVE-2018-7727 CVE-2020-18442 CVE-2018-6381 CVE-2018-6484 CVE-2018-6540 CVE-2018-6541 CVE-2018-6869 CVE-2018-7725  +1 more Upstream summary: Liu Zhu discovered that ZZIPlib incorrectly handled certain inputs. If a user or an automated […]

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How to Set Up GitLab CE on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up GitLab CE on Oracle Linux 8

Introduction Setting up set up gitlab ce on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up GitLab CE on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to […]

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Gentoo Linux — dev-vcs/fossil — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-vcs/fossil — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202011-04 Related CVEs: CVE-2020-24614 Upstream summary: Multiple vulnerabilities have been discovered in Fossil. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction Root […]

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SLES 15 — kubernetes-client — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — kubernetes-client — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 November 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2020:783-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-15106 CVE-2020-15112 CVE-2020-8557 CVE-2020-8565 CVE-2020-8566 CVE-2020-15184 CVE-2020-15185 CVE-2020-15186  +1 more Upstream summary: In etcd before versions 3.3.23 and 3.4.10, a large slice causes panic in […]

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Oracle Linux 8 — fence-agents — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — fence-agents — security and stability fixes — required update (ELSA-2024-2968)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-2968 Related CVEs: CVE-2024-22195 CVE-2023-45803 CVE-2023-52323 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 112431

Windows Server 2019 – Cluster Shared Volume remains in redirected mode – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 November 2020 Affected versions: Windows Server 2019 📖 ~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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How to Configure HashiCorp Vault on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure HashiCorp Vault on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying configure hashicorp vault on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure HashiCorp Vault on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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How to Configure Console and Terminal Settings on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Console and Terminal Settings on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure console and terminal settings on ibm aix 7.1 […]

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Alpine Linux edge — glib-networking — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — glib-networking — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 2.64.3-r0 📖 ~4 min read  •  Source: Alpine secdb entry — glib-networking 2.64.3-r0 Related CVEs: CVE-2020-13645 Upstream summary: Alpine community repository for vedge ships glib-networking 2.64.3-r0 which addresses CVE-2020-13645. Table of contents Symptom & Impact Environment […]

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

Oracle Linux 8 — lua — security and stability fixes — required update (ELSA-2019-3706)

🟡 Medium   ⏱ 10–30 min  Last verified: 7 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3706 Related CVEs: CVE-2019-6706 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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