Linux

Common Problems 117081

Ubuntu 22.04 LTS – journalctl disk usage grows rapidly and fills root filesystem – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 8 September 2024 Affected versions: Ubuntu 22.04 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 116636

Ubuntu 24.04 LTS – AppArmor denies application access unexpectedly – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 September 2024 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 — hdf5 — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — hdf5 — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 1.12.2-r0 📖 ~4 min read  •  Source: Alpine secdb entry — hdf5 1.12.2-r0 Related CVEs: CVE-2018-17432 CVE-2018-11206 CVE-2018-13869 CVE-2018-13870 CVE-2018-14033 CVE-2018-14460 CVE-2018-17435 CVE-2019-9151  +1 more Upstream summary: Alpine community repository for vv3.20 ships hdf5 1.12.2-r0 which […]

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Common Problems 116570

Ubuntu 24.04 LTS – DKMS build fails after kernel update – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 September 2024 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 116514

Ubuntu 24.04 LTS – DKMS module build fails after kernel update

🔴 Critical   ⏱ 5–30 min  Last verified: 8 September 2024 Affected versions: Ubuntu 24.04 LTS Ubuntu 24.04 Ubuntu 24.04.1 📖 ~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 […]

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Alpine Linux 3.20 — dotnet6-runtime — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — dotnet6-runtime — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 6.0.9-r0 📖 ~4 min read  •  Source: Alpine secdb entry — dotnet6-runtime 6.0.9-r0 Related CVEs: CVE-2022-38013 CVE-2022-34716 CVE-2022-30184 CVE-2024-43483 CVE-2024-43484 CVE-2024-43485 CVE-2024-38095 CVE-2024-38081  +12 more Upstream summary: Alpine community repository for vv3.20 ships dotnet6-runtime 6.0.9-r0 which […]

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openSUSE Leap 15.6 — subversion — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — subversion — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2024:14570-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-46901 Upstream summary: Insufficient validation of filenames against control characters in Apache Subversion repositories served via mod_dav_svn allows authenticated users with commit access to […]

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Debian 12 — halibut — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — halibut — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 September 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-42612 CVE-2021-42613 CVE-2021-42614 Upstream summary: A use after free in cleanup_index in index.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have other […]

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Alpine Linux 3.18 — nsd — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — nsd — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 4.3.4-r0 📖 ~4 min read  •  Source: Alpine secdb entry — nsd 4.3.4-r0 Related CVEs: CVE-2020-28935 Upstream summary: Alpine main repository for vv3.18 ships nsd 4.3.4-r0 which addresses CVE-2020-28935. Table of contents Symptom & Impact Environment […]

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How to Set Up Software RAID with mdadm on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Zabbix 7 on Ubuntu 24.04

Zabbix 7 is an enterprise-grade open-source monitoring solution for networks, servers, and cloud services. This guide installs Zabbix Server 7.0 LTS on Ubuntu 24.04 LTS with MySQL and Nginx. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server MySQL 8.0 installed Nginx and PHP 8.3-FPM installed A user with sudo privileges Step […]

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