Linux

How to Configure rsnapshot on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure rsnapshot on Debian 13

Introduction Deploying configure rsnapshot on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, ensure you have a […]

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Debian 13 — mqtt-client — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — mqtt-client — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 August 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-0222 Upstream summary: In Apache ActiveMQ 5.0.0 – 5.15.8, unmarshalling corrupt MQTT frame can lead to broker Out of Memory exception making it unresponsive. Table of contents Symptom & […]

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Rocky Linux 9 — net-snmp — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — net-snmp — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:0696 Related CVEs: CVE-2025-68615 Upstream summary: The net-snmp packages provide various libraries and tools for the Simple Network Management Protocol (SNMP), including an SNMP library, an extensible agent, tools for […]

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Common Problems 116464

Ubuntu 24.04 LTS – GRUB update fails after kernel changes – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 August 2025 Affected versions: Ubuntu 24.04 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 113966

RHEL 10 Firewalld Rich Rule Blocks Expected Service Traffic

🟠 High   ⏱ 5–30 min  Last verified: 19 August 2025 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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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Debian 13 — golang-gopkg-pg.v5 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — golang-gopkg-pg.v5 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 August 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2024-44905 Upstream summary: go-pg pg v10.13.0 was discovered to contain a SQL injection vulnerability via the component /types/append_value.go. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 116456

Ubuntu 24.04 LTS – Cloud-init rewrites network settings unexpectedly – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 19 August 2025 Affected versions: Ubuntu 24.04 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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Alpine Linux 3.20 — libcue — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — libcue — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 2.2.1-r2 📖 ~4 min read  •  Source: Alpine secdb entry — libcue 2.2.1-r2 Related CVEs: CVE-2023-43641 Upstream summary: Alpine community repository for vv3.20 ships libcue 2.2.1-r2 which addresses CVE-2023-43641. Table of contents Symptom & Impact Environment […]

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Debian 13 — jackson-dataformat-xml — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — jackson-dataformat-xml — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 August 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-3720 CVE-2016-7051 Upstream summary: XML external entity (XXE) vulnerability in XmlMapper in the Data format extension for Jackson (aka jackson-dataformat-xml) allows attackers to have unspecified impact via unknown […]

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