Troubleshooting

SLES 12 — npm6 — multiple vulnerabilities (10 CVEs) — patch and remediation guide

• November 12, 2020
• Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 12 November 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:1568-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-8174 CVE-2019-15604 CVE-2019-15605 CVE-2019-15606 CVE-2019-16775 CVE-2019-16776 CVE-2019-16777 CVE-2020-7598  +2 more Upstream summary: napi_get_value_string_*() allows various kinds of memory corruption in node < 10.21.0, 12.18.0, and […]

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How to Set Up a CI/CD Pipeline with Drone CI on FreeBSD 12

• November 12, 2020
• FreeBSD
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Introduction Deploying set up a ci/cd pipeline with drone ci on freebsd 12 on a FreeBSD 12 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays […]

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How to Configure Fluentd Log Collector on Debian 9

• November 12, 2020
• Linux
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Introduction Deploying configure fluentd log collector on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian […]

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Oracle Linux 8 — nodejs:16 — security and stability fixes — required update (ELSA-2022-6449)

• November 11, 2020
• Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 11 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6449 Related CVEs: CVE-2021-3807 CVE-2022-32213 CVE-2022-32212 CVE-2022-32214 CVE-2022-32215 CVE-2022-33987 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Ubuntu 18.04 LTS – kubelet fails to start due to cgroup driver mismatch – Fix & Prevention

• November 11, 2020
• Linux
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🟠 High   ⏱ 5–30 min  Last verified: 11 November 2020 Affected versions: Ubuntu 18.04 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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Ubuntu 18.04 Failed to Mount /boot or /boot/efi

• November 11, 2020
• Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 11 November 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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How to Configure Software RAID on Oracle Linux 8

• November 11, 2020
• Oracle Linux
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Introduction How to Configure Software RAID on Oracle Linux 8 on Oracle Linux 8 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 is […]

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Sudo Command Fails with PAM Account Error

• November 11, 2020
• Tutorials
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🟡 Medium   ⏱ 5–30 min  Last verified: 11 November 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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Windows Server 2016 – gMSA authentication fails inside Windows containers – Fix & Prevention

• November 11, 2020
• Tutorials
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🟠 High   ⏱ 5–30 min  Last verified: 11 November 2020 Affected versions: Windows Server 2016 📖 ~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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Windows Server 2016 – Hyper-V checkpoint merge stuck with AVHDX growth – Fix & Prevention

• November 11, 2020
• Tutorials
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🟠 High   ⏱ 5–30 min  Last verified: 11 November 2020 Affected versions: Windows Server 2016 📖 ~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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