November 2022 - Page 19 of 69

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2022-9365)

• November 23, 2022
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9365 Related CVEs: CVE-2022-27666 CVE-2020-24504 CVE-2021-45095 CVE-2022-1158 CVE-2020-24502 CVE-2020-24503 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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SLES 12 — php72 — multiple vulnerabilities (15 CVEs) — patch and remediation guide

• November 23, 2022
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:2161-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-31625 CVE-2022-31626 CVE-2020-36193 CVE-2020-7069 CVE-2021-21702 CVE-2021-21704 CVE-2022-31628 CVE-2022-31629  +7 more Upstream summary: In PHP versions 7.4.x below 7.4.30, 8.0.x below 8.0.20, and 8.1.x below 8.1.7, […]

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How to Build Grafana Dashboards for Linux Server Metrics on RHEL 9

• November 23, 2022
• Linux
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Grafana’s dashboard builder lets you turn raw Prometheus metrics into intuitive visualizations — stat panels for at-a-glance health, time series for trends, and bar gauges for comparisons. With Prometheus and Node Exporter already collecting Linux host metrics, you have everything needed to build a production-grade server dashboard. This tutorial walks through creating panels for CPU, […]

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How To Install Your Own Webmail Client with Roundcube on Ubuntu 16.04

• November 23, 2022
• Linux
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If you want to stop seeing ads when you check your email, or if you’ve moved from a public email service to your own domain, you can run your own webmail client (also known as a mail user agent or MUA). In this tutorial, you will set up the webmail client Roundcube backed by Gmail.

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Ubuntu 22.04 sudo Fails in Non-Interactive Jobs with askpass Errors

• November 22, 2022
• Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 📖 ~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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Gentoo Linux — app-crypt/heimdal — multiple vulnerabilities (9 CVEs) — patch and remediation guide

• November 22, 2022
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202310-06 Related CVEs: CVE-2019-14870 CVE-2021-44758 CVE-2022-3437 CVE-2022-3671 CVE-2022-41916 CVE-2022-42898 CVE-2022-44640 CVE-2022-44758  +1 more Upstream summary: Multiple vulnerabilities have been discovered in Heimdal, the worst of which could lead to remote code execution […]

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Debian 11 — mailman3 — vulnerability — patch and remediation guide

• November 22, 2022
• Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-34337 Upstream summary: An issue was discovered in Mailman Core before 3.3.5. An attacker with access to the REST API could use timing attacks to determine the value […]

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RHEL 10 – nftables and firewalld Policy Conflict Breaks Traffic – Unified Rule Strategy

• November 22, 2022
• Linux
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🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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Windows Server 2022 — Windows Admin Center gateway service crashes on startup — Fix & Prevention

• November 22, 2022
• Tutorials
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🟡 Medium   ⏱ 5–30 min  Last verified: 18 May 2026 Affected versions: Windows Server 2022 📖 ~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 Bootlist on IBM AIX 7.3

• November 22, 2022
• IBM AIX
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Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure bootlist on IBM AIX 7.3 with practical examples […]

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