Troubleshooting

Common Problems 119044

Ubuntu 14.04 LTS Swap Exhaustion Causes OOM Kills

🟡 Medium   ⏱ 5–30 min  Last verified: 8 July 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 SLES 15 for Container Workloads — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure SLES 15 for Container Workloads

Introduction This tutorial covers How to Configure SLES 15 for Container Workloads on SLES 15. SLES 15 (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 15 system is up to date: zypper refresh […]

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Ubuntu 20.04 — bash — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — bash — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 July 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5380-1 Related CVEs: CVE-2019-18276 Upstream summary: It was discovered that Bash did not properly drop privileges when the binary had the setuid bit enabled. An attacker could possibly use this […]

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Ubuntu 16.04 — pam-python — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — pam-python — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 July 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4552-3 Related CVEs: CVE-2019-16729 Upstream summary: USN-4552-1 and USN-4552-2 fixed a vulnerability in Pam-python. The update introduced a regression which prevented PAM modules written in Python from importing python modules […]

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How to Install and Configure GraalVM on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install and Configure GraalVM on Debian 10

Introduction How to Install and Configure GraalVM 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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openSUSE Tumbleweed — ganglia-web — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ganglia-web — 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-2022:3895-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-20378 Upstream summary: ganglia-web (aka Ganglia Web Frontend) through 3.7.5 allows XSS via the header.php ce parameter. Table of contents Symptom & Impact Environment & […]

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SLES 15 — dom4j — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — dom4j — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 8 July 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:1382-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-10683 CVE-2018-1000632 Upstream summary: dom4j before 2.0.3 and 2.1.x before 2.1.3 allows external DTDs and External Entities by default, which might enable XXE attacks. However, […]

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Common Problems 119003

Ubuntu 14.04 LTS black screen after suspend resume

🟡 Medium   ⏱ 5–30 min  Last verified: 7 July 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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