Troubleshooting

openSUSE Tumbleweed — libcroco — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libcroco — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2019:1575-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-7960 CVE-2017-7961 CVE-2017-8834 CVE-2017-8871 Upstream summary: The cr_input_new_from_uri function in cr-input.c in libcroco 0.6.11 and 0.6.12 allows remote attackers to cause a denial of service […]

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FreeBSD 12 — mysql57-client — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mysql57-client — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 1 January 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: MySQL — Multiple vulnerabilities Related CVEs: CVE-2016-3492 CVE-2016-5616 CVE-2016-5617 CVE-2016-5624 CVE-2016-5625 CVE-2016-5626 CVE-2016-5629 CVE-2016-6662  +9 more Upstream summary: Oracle reports: This Critical Patch Update contains 34 new security patches for […]

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How to Configure Software Defined Networking (SDN) on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Software Defined Networking (SDN) on Windows Server 2016

How to Configure Windows Server Software-Defined Networking (SDN) on Windows Server 2016 Software-Defined Networking (SDN) in Windows Server 2016 decouples the network control plane from the data plane, allowing administrators to programmatically configure and manage network infrastructure through a centralized controller. The Windows Server 2016 SDN stack is built on Hyper-V Network Virtualization and includes […]

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FreeBSD 12 — exim-postgresql — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — exim-postgresql — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 1 January 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: exim — local privilege escalation Related CVEs: CVE-2004-0400 CVE-2005-0021 CVE-2005-0022 CVE-2011-0017 Upstream summary: exim.org reports: CVE-2011-0017 – check return value of setuid/setgid. This is a privilege escalation vulnerability whereby the […]

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

How to Configure Windows Firewall on Windows Server 2016

How to Set Up Windows Server 2016 Windows Firewall Windows Firewall with Advanced Security is a host-based firewall built into Windows Server 2016. It provides bi-directional traffic filtering, connection security rules, and integration with IPsec. Properly configuring the firewall is essential for securing your server against unauthorized access while allowing legitimate traffic to pass. This […]

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Common Problems 115509

RHEL 7 XFS remounted read-only after detected filesystem errors

🟠 High   ⏱ 5–30 min  Last verified: 31 December 2019 Affected versions: RHEL 7 📖 ~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 115121

RHEL 8 Dracut Drops to Emergency Shell After Initramfs Issue

🔴 Critical   ⏱ 5–30 min  Last verified: 31 December 2019 Affected versions: 8.5 8.6 8.7 8.8 8.9 8.10 📖 ~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 & […]

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

openSUSE Tumbleweed — rkhunter — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2008-4982 Upstream summary: rkhunter in rkhunter 1.3.2 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/rkhunter-debug temporary file. NOTE: this […]

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How to Harden Nginx with Security Headers on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Harden Nginx with Security Headers on FreeBSD 12

Introduction How to Harden Nginx with Security Headers on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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Common Problems 112487

Windows Server 2019 – Filesystem minifilter altitude conflict causes access denied spikes – Fix and Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 31 December 2019 Affected versions: Windows Server 2019 📖 ~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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