Systemd Services

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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openSUSE Tumbleweed — openfortivpn — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — openfortivpn — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0301-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-7041 CVE-2020-7042 CVE-2020-7043 Upstream summary: An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL 1.0.2 or later. tunnel.c mishandles certificate validation because an […]

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Common Problems 118583

Ubuntu 16.04 LTS – journald grows rapidly and fills /var – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 7 November 2020 Affected versions: Ubuntu 16.04 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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Common Problems 112567

Windows Server 2019 — KDC service fails to start due to port 88 conflict — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 7 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 libvirt on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure libvirt on Oracle Linux 8

Introduction Setting up configure libvirt 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 Configure libvirt on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]

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How to Configure NTP on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure NTP on IBM AIX 7.2

Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure ntp on ibm aix 7.2 on IBM AIX […]

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How to Use SMIT to Manage System Tasks on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use SMIT to Manage System Tasks on IBM AIX 7.2

Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use smit to manage system tasks on ibm aix […]

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Gentoo Linux — www-client/opera-beta — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — www-client/opera-beta — 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-202401-19 Related CVEs: CVE-2020-15999 Upstream summary: Multiple vulnerabilities have been discovered in Opera. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction Root […]

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How to Set Up SSH Key Authentication on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up SSH Key Authentication on Debian 9

Introduction This guide explains how to Set Up SSH Key Authentication on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with […]

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