Logging Monitoring

Common Problems 121004

Debian 10 – unattended-upgrades lock prevents manual apt operations

🟡 Medium   ⏱ 5–30 min  Last verified: 26 June 2020 Affected versions: Debian 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 & Hardening Related Errors & […]

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

openSUSE Tumbleweed — pia — vulnerability — 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-2020:0784-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-13696 Upstream summary: An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() in v4l-conf.c does not perform sufficient checks to prevent an […]

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Common Problems 115392

yum fails with Cannot retrieve metalink

🟡 Medium   ⏱ 5–30 min  Last verified: 26 June 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 Use Snapshots with JFS2 on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use Snapshots with JFS2 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 use snapshots with jfs2 on ibm aix 7.2 on […]

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How to Configure LVM Thin Provisioning on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure LVM Thin Provisioning on Debian 10

Introduction This guide explains how to Configure LVM Thin Provisioning on Debian 10 on Debian 10 Buster. Debian Buster 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 10 install with the […]

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openSUSE Tumbleweed — devscripts — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — devscripts — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2012-2240 CVE-2012-2241 CVE-2012-3500 Upstream summary: scripts/dscverify.pl in devscripts before 2.12.3 allows remote attackers to execute arbitrary commands via unspecified vectors related to "arguments to external commands." Table of contents […]

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Common Problems 121145

Debian 10 Hostname Resolution Warning sudo unable to resolve host

🟢 Low   ⏱ 5–30 min  Last verified: 25 June 2020 Affected versions: Debian 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 & Hardening Related Errors & […]

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Common Problems 115507

yum Metadata Expired and Repositories Stay Stale

🟡 Medium   ⏱ 5–30 min  Last verified: 25 June 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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openSUSE Tumbleweed — perl-DBD-mysql — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — perl-DBD-mysql — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2017:0122-1 (see also SUSE bugzilla) Related CVEs: CVE-2016-1246 CVE-2016-1251 CVE-2017-10788 CVE-2017-10789 CVE-2016-1249 Upstream summary: Buffer overflow in the DBD::mysql module before 4.037 for Perl allows context-dependent attackers to cause a denial of […]

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Common Problems 114958

RHEL 8 Static Routes Disappear After Reboot With NetworkManager

🟡 Medium   ⏱ 5–30 min  Last verified: 25 June 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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