Operations

Debian 11 — lzo2 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — lzo2 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-4607 Upstream summary: Integer overflow in the LZO algorithm variant in Oberhumer liblzo2 and lzo-2 before 2.07 on 32-bit platforms might allow remote attackers to execute arbitrary code […]

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Debian 11 — milkytracker — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — milkytracker — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 21 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-14464 CVE-2019-14496 CVE-2019-14497 CVE-2020-15569 CVE-2022-34927 Upstream summary: XMFile::read in XMFile.cpp in milkyplay in MilkyTracker 1.02.00 has a heap-based buffer overflow. Table of contents Symptom & Impact Environment & […]

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How to Set Up Tripwire for File Integrity Monitoring on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up Tripwire for File Integrity Monitoring on RHEL 9

File Integrity Monitoring (FIM) detects unauthorised modifications to critical system files — a key indicator of compromise that antivirus and network monitoring tools often miss. Tripwire is a battle-tested open-source FIM tool that creates a cryptographic hash database of your filesystem and alerts you when files are added, modified, or deleted. On RHEL 9, Tripwire […]

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Oracle Linux 8 — cri-o — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — cri-o — vulnerability — patch and remediation guide (ELSA-2022-9718)

🟠 High   ⏱ 15–60 min  Last verified: 21 December 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9718 Related CVEs: CVE-2022-1708 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 Set Up Remote Desktop Connection Broker on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up Remote Desktop Connection Broker on Windows Server 2022

Introduction Kubernetes on Windows Server 2022 allows you to run Windows containerized workloads alongside Linux containers in a mixed-OS cluster. Since Kubernetes control plane components (API server, scheduler, controller manager, etcd) only run on Linux, a Windows Server 2022 node always joins an existing cluster as a worker node — it cannot act as a […]

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Common Problems 117956

Ubuntu 18.04 LTS – cloud-init network overrides break static IP settings – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 20 December 2022 Affected versions: Ubuntu 18.04 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 117130

Ubuntu 22.04 LTS GRUB Menu Missing After EFI Partition Cleanup

🟡 Medium   ⏱ 5–30 min  Last verified: 20 December 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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Common Problems 112416

Windows Server 2019 — Application pool crashes loop on rapid-fail protection — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 December 2022 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 Use smit fastpath Shortcuts on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Use smit fastpath Shortcuts 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 use smit fastpath shortcuts on IBM AIX 7.3 with […]

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FreeBSD 12 — py38-treq — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py38-treq — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 December 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-treq — sensitive information leak vulnerability Related CVEs: CVE-2022-23607 Upstream summary: Treq's request methods (`treq.get`, `treq.post`, `HTTPClient.request`, `HTTPClient.get`, etc.) accept cookies as a dictionary. Such cookies are not bound to […]

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