Logging Monitoring

openSUSE Tumbleweed — claws-mail — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — claws-mail — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:1116-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-15917 CVE-2012-4507 CVE-2015-8614 CVE-2015-8708 Upstream summary: common/session.c in Claws Mail before 3.17.6 has a protocol violation because suffix data after STARTTLS is mishandled. Table of […]

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How to Install Kubernetes with kubeadm on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Kubernetes with kubeadm on RHEL 7

How to Install Kubernetes with kubeadm on RHEL 7 Kubernetes is the industry-standard container orchestration platform, enabling you to automate deployment, scaling, and management of containerized applications across a cluster of machines. On Red Hat Enterprise Linux 7, setting up a production-grade Kubernetes cluster using kubeadm is the recommended approach. This tutorial walks through every […]

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Oracle Linux 8 — container-tools:ol8 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — container-tools:ol8 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-1762)

🟠 High   ⏱ 15–60 min  Last verified: 18 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-1762 Related CVEs: CVE-2022-21698 CVE-2022-27651 CVE-2022-1227 CVE-2022-27649 CVE-2022-27650 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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Ubuntu 20.04 — crmsh — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — crmsh — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 December 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6711-1 Related CVEs: CVE-2020-35459 Upstream summary: Vincent Berg discovered that CRM shell incorrectly handled certain commands. An local attacker could possibly use this issue to execute arbitrary code via shell […]

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Common Problems 117469

Ubuntu 20.04 snap apps fail to launch

🟡 Medium   ⏱ 5–30 min  Last verified: 18 December 2020 📖 ~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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Common Problems 115005

journalctl Logs Consuming Excessive Disk Space

🟡 Medium   ⏱ 5–30 min  Last verified: 18 December 2020 📖 ~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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How to Set Up Swap Space on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Swap Space on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up swap space on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Swap Space on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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Common Problems 112399

Windows Server 2019 — SYSVOL and NETLOGON shares missing after DC promotion — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 18 December 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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Oracle Linux 8 — zziplib — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — zziplib — vulnerability — patch and remediation guide (ELSA-2020-1653)

🟡 Medium   ⏱ 10–30 min  Last verified: 18 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1653 Related CVEs: CVE-2018-17828 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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How to Configure Motif Applications on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Motif Applications 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 motif applications on ibm aix 7.2 on IBM […]

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