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How to Configure firewalld Zones on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure firewalld Zones on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying configure firewalld zones on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure firewalld Zones on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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Common Problems 120025

Debian 12 SSH Public Key Authentication Denied

🟠 High   ⏱ 5–30 min  Last verified: 2 September 2023 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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NetBSD 9.4 — p5-Image-Info — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — p5-Image-Info — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2016-9181 Upstream summary: pkgsrc audit-packages flagged p5-Image-Info<1.39 for vulnerability class 'xml-external-entity'. Reference: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-9181 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Common Problems 117060

Ubuntu 22.04 LTS Multipath Device Names Change After Reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 2 September 2023 📖 ~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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NetBSD 9.4 — p5-Convert-UUlib — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — p5-Convert-UUlib — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged p5-Convert-UUlib<1.05 for vulnerability class 'buffer-overflow'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1349 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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How to Install Perl on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Install Perl on Oracle Linux 9

Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying install perl on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Perl on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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Debian 12 — chicken — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — chicken — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 2 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-6122 CVE-2012-6123 CVE-2012-6124 CVE-2012-6125 CVE-2013-1874 CVE-2013-2024 CVE-2013-4385 CVE-2014-3776  +9 more Upstream summary: Buffer overflow in the thread scheduler in Chicken before 4.8.0.1 allows attackers to cause a denial […]

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NetBSD 9.4 — nushell — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — nushell — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged nushell-[0-9]* for vulnerability class 'unknown'. Reference: https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.78 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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Debian 11 — xmltooling — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xmltooling — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 2 September 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-3474 CVE-2009-3475 CVE-2009-3476 CVE-2015-0851 CVE-2018-0486 CVE-2018-0489 CVE-2019-9628 CVE-2023-36661 Upstream summary: OpenSAML 2.x before 2.2.1 and XMLTooling 1.x before 1.2.1, as used by Internet2 Shibboleth Service Provider 2.x before […]

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Amazon Linux 2 — kernel-livepatch-4.14.334-252.552 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.334-252.552 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2024-164 Related CVEs: CVE-2023-6040 CVE-2023-6606 Upstream summary: An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4 (netfilter: nf_tables: Reject tables of unsupported family); While creating a new […]

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