Troubleshooting

SLES 12 — libcroco — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libcroco — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 May 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-IU-2021:741-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-12825 CVE-2017-7960 CVE-2017-7961 CVE-2017-8834 CVE-2017-8871 Upstream summary: libcroco through 0.6.13 has excessive recursion in cr_parser_parse_any_core in cr-parser.c, leading to stack consumption. Table of contents Symptom […]

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Alpine Linux edge — e2fsprogs — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — e2fsprogs — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.45.5-r0 📖 ~4 min read  •  Source: Alpine secdb entry — e2fsprogs 1.45.5-r0 Related CVEs: CVE-2019-5188 CVE-2019-5094 Upstream summary: Alpine main repository for vedge ships e2fsprogs 1.45.5-r0 which addresses CVE-2019-5188. Table of contents Symptom & Impact […]

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

How to Install Windows Server 2016

How to Install Windows Server 2016 Windows Server 2016 is Microsoft’s server operating system released in October 2016. It introduces new features such as Nano Server, Storage Spaces Direct, shielded virtual machines, and significant improvements to Hyper-V. This guide walks you through a clean installation of Windows Server 2016 from bootable media. Prerequisites Before beginning […]

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Common Problems 121664

Debian 9 – Docker or containerd fails after cgroup v2 migration

🟠 High   ⏱ 5–30 min  Last verified: 4 May 2020 Affected versions: Debian 9 📖 ~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 118062

Ubuntu 18.04 LTS cron jobs stop running due to invalid environment

🟡 Medium   ⏱ 5–30 min  Last verified: 4 May 2020 📖 ~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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Gentoo Linux — net-dns/nsd — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-dns/nsd — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202101-38 Related CVEs: CVE-2020-28935 Upstream summary: A local vulnerability was discovered that would allow for a local symlink attack due to how NSD handles PID files. Table of contents Symptom & Impact […]

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Common Problems 117517

Ubuntu 20.04 LTS – LVM volume reaches 100 percent causing service failures – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 4 May 2020 Affected versions: Ubuntu 20.04 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 Monitor Nginx Logs with GoAccess on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Monitor Nginx Logs with GoAccess on FreeBSD 12

Introduction How to Monitor Nginx Logs with GoAccess 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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How to Configure IPv6 on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure IPv6 on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure ipv6 on ibm aix 7.2 on IBM AIX […]

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

openSUSE Tumbleweed — gstreamer — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2015:0921-1 (see also SUSE bugzilla) Related CVEs: CVE-2015-0797 Upstream summary: GStreamer before 1.4.5, as used in Mozilla Firefox before 38.0, Firefox ESR 31.x before 31.7, and Thunderbird before 31.7 on Linux, allows […]

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