Troubleshooting

FreeBSD 12 — silc-client — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — silc-client — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 January 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: silc-client — Format string vulnerability Related CVEs: CVE-2009-3051 Upstream summary: SILC changelog reports: An unspecified format string vulnerability exists in silc-client. Table of contents Symptom & Impact Environment & Reproduction […]

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How to Set Up Unbound DNS Resolver on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Unbound DNS Resolver on Debian 9

Introduction This guide explains how to Set Up Unbound DNS Resolver on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with […]

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Gentoo Linux — media-libs/faad2 — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — media-libs/faad2 — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202006-17 Related CVEs: CVE-2018-19502 CVE-2018-19503 CVE-2018-19504 CVE-2018-20194 CVE-2018-20195 CVE-2018-20196 CVE-2018-20197 CVE-2018-20198  +11 more Upstream summary: Multiple vulnerabilities have been discovered in FAAD2. Please review the CVE identifiers referenced below for details. Table […]

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Oracle Linux 8 — sudo — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — sudo — vulnerability — patch and remediation guide (ELSA-2020-0487)

🟠 High   ⏱ 15–60 min  Last verified: 6 January 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0487 Related CVEs: CVE-2019-18634 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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openSUSE Tumbleweed — supervisor — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — supervisor — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2019-12105 Upstream summary: In Supervisor through 4.0.2, an unauthenticated user can read log files or restart a service. Note: The maintainer responded that the affected […]

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How to Install and Configure Samba File Server on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure Samba File Server on Debian 9

Introduction This guide explains how to Install and Configure Samba File Server on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install […]

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SLES 15 — system-user-root — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — system-user-root — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 6 January 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2019:697-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-5021 Upstream summary: Versions of the Official Alpine Linux Docker images (since v3.3) contain a NULL password for the `root` user. This vulnerability appears to […]

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FreeBSD 12 — percona55-client — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — percona55-client — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 6 January 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: MySQL Client — Multiple vulerabilities Related CVEs: CVE-2015-4792 CVE-2015-4802 CVE-2015-4807 CVE-2015-4815 CVE-2015-4826 CVE-2015-4830 CVE-2015-4836 CVE-2015-4858  +12 more Upstream summary: Oracle reports: This Critical Patch Update contains 45 new security patches […]

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How to Configure a DNS Server on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure a DNS Server on Windows Server 2016

How to Configure DNS Server on Windows Server 2016 The DNS Server role on Windows Server 2016 resolves hostnames to IP addresses, enabling network resources to be located by name rather than by number. DNS is a fundamental requirement for Active Directory to function, and it is also used for general network name resolution. This […]

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Common Problems 113407

Windows Server 2012 R2 — Chocolatey package install fails due to TLS 1.2 handshake error — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 January 2020 Affected versions: Windows Server 2012 R2 📖 ~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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CHAT