Operations

Common Problems 117007

Ubuntu 22.04 MySQL Startup Failure After InnoDB Log Size Change

🟡 Medium   ⏱ 5–30 min  Last verified: 27 September 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 & Cross-Refs References & Further […]

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FreeBSD 13 — mysql81-server — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — mysql81-server — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 September 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: MySQL — Multiple vulnerabilities Upstream summary: Oracle reports: 36 new security patches for Oracle MySQL. 11 of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over […]

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How to Configure Kerberos Authentication on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure Kerberos Authentication on IBM AIX 7.3

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 kerberos authentication on IBM AIX 7.3 with practical […]

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How to Monitor MySQL with Percona Monitoring and Management on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Monitor MySQL with Percona Monitoring and Management on RHEL 9

Percona Monitoring and Management (PMM) is a free, open-source platform built on top of Prometheus, VictoriaMetrics, and Grafana that provides deep visibility into MySQL and other database workloads. PMM separates concerns into a centralised Server component (delivered as a Docker image) and a lightweight Client agent that runs on each database host. This guide walks […]

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

AlmaLinux 8 — swig — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2021:1755 Upstream summary: The simplified wrapper and interface generator (SWIG) is a software development utility to connect C, C++, and Objective C programs with a variety of high-level programming languages. SWIG is […]

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Common Problems 113597

Windows Server 2012 R2 — Update History Appears Empty After Datastore Reset Confusing Compliance — Fix & Prevention

🟢 Low   ⏱ 5–30 min  Last verified: 27 September 2022 Affected versions: Windows Server 2012 R2 📖 ~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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FreeBSD 13 — duo — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — duo — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 September 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: duo — Two-factor authentication bypass Upstream summary: The duo security team reports: An untrusted user may be able to set the http_proxy variable to an invalid address. If this happens, […]

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Debian 11 — python-rtslib-fb — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-rtslib-fb — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-14019 Upstream summary: Open-iSCSI rtslib-fb through 2.1.72 has weak permissions for /etc/target/saveconfig.json because shutil.copyfile (instead of shutil.copy) is used, and thus permissions are not preserved. Table of contents […]

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Debian 11 — systemd-cron — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — systemd-cron — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-9525 Upstream summary: In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on Ubuntu, the postinst maintainer script allows for group-crontab-to-root privilege escalation via symlink attacks […]

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How to Set Up iSCSI on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up iSCSI on FreeBSD 12

Introduction This guide explains how to Set Up iSCSI on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege […]

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