September 2025 - Page 51 of 105

Common Problems 124009

Oracle Linux 10 – systemd service enters failed state after boot due to unit ordering – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Oracle Linux 10 📖 ~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 […]

Read more
AlmaLinux 8 — perl-ExtUtils-Manifest — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — perl-ExtUtils-Manifest — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:8096 Related CVEs: CVE-2025-40909 CVE-2023-47038 Upstream summary: Perl is a high-level programming language that is commonly used for system administration utilities and web programming. Security Fix(es): * perl: Perl threads have a […]

Read more
Rocky Linux 10 — util-linux — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 10

Rocky Linux 10 — util-linux — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 10 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:1696 Related CVEs: CVE-2025-14104 Upstream summary: The util-linux packages contain a large variety of low-level system utilities that are necessary for a Linux system to function. Among others, these include […]

Read more
Common Problems 123977

Oracle Linux 10 – dnf module stream conflict blocks application install – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Oracle Linux 10 📖 ~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 […]

Read more
Alpine Linux 3.20 — optipng — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 0.7.8-r0 📖 ~4 min read  •  Source: Alpine secdb entry — optipng 0.7.8-r0 Related CVEs: CVE-2023-43907 Upstream summary: Alpine community repository for vv3.20 ships optipng 0.7.8-r0 which addresses CVE-2023-43907. Table of contents Symptom & Impact Environment […]

Read more
NetBSD 9.4 — tcpreplay — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — tcpreplay — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2018-18408 CVE-2025-9157 CVE-2025-9385 CVE-2025-9386 CVE-2017-6429 CVE-2017-14266 CVE-2018-18407 CVE-2018-20552  +12 more Upstream summary: pkgsrc audit-packages flagged tcpreplay<4.3.0 for vulnerability class 'use-after-free'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-18408 Table of contents Symptom & Impact Environment […]

Read more
Common Problems 119589

Debian 13 systemd Timer or Cron Job Not Running

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 📖 ~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 […]

Read more
How to Set Up Alertmanager Email Notifications on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Set Up Alertmanager Email Notifications on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up set up alertmanager email notifications on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting […]

Read more
openSUSE Leap 15.6 — json-lib — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — json-lib — 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 SUSE-SU-2024:3543-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-47855 Upstream summary: util/JSONTokener.java in JSON-lib before 3.1.0 mishandles an unbalanced comment string. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

Read more
CHAT