Systemd Services

Common Problems 117925

Ubuntu 18.04 LTS – DNS resolution fails after netplan or resolv.conf changes

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2021 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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How to Configure Oracle Linux 8 with Secure Boot — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Oracle Linux 8 with Secure Boot

Introduction How to Configure Oracle Linux 8 with Secure Boot on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]

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AlmaLinux 8 — mcstrans — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — mcstrans — 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-2020:1839 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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AlmaLinux 8 — libgit2 — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libgit2 — 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-2020:4773 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 13 — libtool — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — libtool — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libtool — Library Search Path Privilege Escalation Issue Related CVEs: CVE-2009-3736 Upstream summary: Secunia.com Do not attempt to load an unqualified module.la file from the current directory (by default) since […]

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How to Configure IBM Spectrum Protect (TSM) Client on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure IBM Spectrum Protect (TSM) Client 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 ibm spectrum protect (tsm) client on ibm aix […]

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Alpine Linux edge — re2c — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — re2c — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.3-r1 📖 ~4 min read  •  Source: Alpine secdb entry — re2c 1.3-r1 Related CVEs: CVE-2020-11958 Upstream summary: Alpine main repository for vedge ships re2c 1.3-r1 which addresses CVE-2020-11958. Table of contents Symptom & Impact Environment […]

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Debian 10 — libpam-krb5 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — libpam-krb5 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 May 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-10595 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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Ubuntu 18.04 — rabbitmq-server — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — rabbitmq-server — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 May 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5004-1 Related CVEs: CVE-2019-11287 CVE-2021-22116 Upstream summary: It was discovered that RabbitMQ incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. This […]

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