2020 - Page 705 of 735

Common Problems 118428

Could Not Resolve security.ubuntu.com

🟡 Medium   ⏱ 5–30 min  Last verified: 15 January 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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Common Problems 118404

Ubuntu 16.04 LTS boot drops to initramfs after unclean shutdown

🟠 High   ⏱ 5–30 min  Last verified: 15 January 2020 Affected versions: 16.04 16.04.7 📖 ~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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How to Set Up Splunk Universal Forwarder on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up Splunk Universal Forwarder on SLES 12

Introduction This tutorial covers How to Set Up Splunk Universal Forwarder on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: […]

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How to Use numa_node_info for NUMA Topology on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use numa_node_info for NUMA Topology on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use numa_node_info for numa topology on ibm aix 7.1 […]

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Alpine Linux edge — chrony — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — chrony — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 3.5.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — chrony 3.5.1-r0 Related CVEs: CVE-2020-14367 Upstream summary: Alpine main repository for vedge ships chrony 3.5.1-r0 which addresses CVE-2020-14367. Table of contents Symptom & Impact Environment […]

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How to Configure Ceph Storage Cluster on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Ceph Storage Cluster on Debian 10

Introduction How to Configure Ceph Storage Cluster on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 10. […]

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