Logging Monitoring

Common Problems 119999

Debian 12: SSH login denied after hardening changes

🔴 Critical   ⏱ 5–30 min  Last verified: 17 December 2024 Affected versions: Debian 12 📖 ~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 Set Up ClamAV Antivirus on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Set Up ClamAV Antivirus on CentOS Stream 10

Introduction How to Set Up ClamAV Antivirus on CentOS Stream 10 on CentOS Stream 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration […]

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NetBSD 10.0 — opensaml — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — opensaml — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2011-1411 CVE-2017-16853 Upstream summary: pkgsrc audit-packages flagged opensaml<2.4.3 for vulnerability class 'remote-security-bypass'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1411 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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Common Problems 117015

Ubuntu 22.04 LTS – GRUB update fails with malformed custom menu entry – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 December 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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How to Install HAProxy on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Install HAProxy on CentOS Stream 10

Introduction CentOS Stream 10 ships with a stable, security-hardened base that makes deploying install haproxy on centos stream 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Install HAProxy on CentOS Stream 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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NetBSD 10.0 — ledger — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — ledger — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2017-2808 CVE-2017-12481 CVE-2017-12482 CVE-2017-2807 Upstream summary: pkgsrc audit-packages flagged ledger<3.1.2 for vulnerability class 'use-after-free'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2017-2808 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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FreeBSD 14 — pwlib — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — pwlib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 17 December 2024 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Vulnerabilities in H.323 implementations Related CVEs: CVE-2004-0097 Upstream summary: The NISCC and the OUSPG developed a test suite for the H.323 protocol. This test suite has uncovered vulnerabilities in several […]

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Common Problems 116548

Ubuntu 24.04 LTS Time Sync Fails with systemd-timesyncd

🟠 High   ⏱ 5–30 min  Last verified: 17 December 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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Amazon Linux 2023 — php8.1 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — php8.1 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2024-612 Related CVEs: CVE-2022-31629 CVE-2024-2756 CVE-2024-3096 CVE-2023-3247 CVE-2023-3823 CVE-2023-3824 CVE-2022-31627 CVE-2022-31628  +12 more Upstream summary: The vulnerability allows a remote attacker to bypass implemented security restrictions. The vulnerability exists due […]

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Common Problems 116517

Ubuntu 24.04 LTS – Bluetooth service fails to start – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 17 December 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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