Ubuntu 16.04

How To Configure a FreeIPA Client on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Configure a FreeIPA Client on Ubuntu 16.04

FreeIPA is an open-source security solution for Linux which provides account management and centralized authentication, similar to Microsoft’s Active Directory. FreeIPA is built on top of multiple open source projects including the 389…

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Common Problems 118544

Ubuntu 16.04 LTS nginx fails to start due to certificate chain error

🟠 High   ⏱ 5–30 min  Last verified: 23 October 2019 Affected versions: 16.04 📖 ~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 […]

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Common Problems 118577

Ubuntu 16.04 LTS Docker daemon fails with cgroup driver mismatch

🟡 Medium   ⏱ 5–30 min  Last verified: 21 October 2019 📖 ~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 Ensure Code Quality with SonarQube on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Ensure Code Quality with SonarQube on Ubuntu 16.04

Code quality is an approximation of how useful and maintainable a specific piece of code is. Quality code will make the task of maintaining and expanding your application easier. In this guide, you will deploy a SonarQube server and scanner to analyze your code and create code quality reports. Then you’ll perform a test on your machine by scanning it with the SonarQube tool.

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Common Problems 118532

Ubuntu 16.04 mdadm RAID Degraded After Reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 16 October 2019 📖 ~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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Ubuntu 16.04 — opencv — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — opencv — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 16 October 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4818-1 Related CVEs: CVE-2019-15939 CVE-2019-14491 CVE-2017-18009 CVE-2019-14492 CVE-2019-14493 Upstream summary: It was discovered that OpenCV did not properly manage certain objects, leading to a divide-by-zero. If a user were tricked […]

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Ubuntu 16.04 — php-imagick — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — php-imagick — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 October 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4586-2 Related CVEs: CVE-2019-11037 Upstream summary: USN-4586-1 fixed vulnerabilities in PHP ImageMagick. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: It was discovered that PHP […]

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Common Problems 118396

Ubuntu 16.04 LTS – apt update fails because dpkg lock is held

🟠 High   ⏱ 5–30 min  Last verified: 13 October 2019 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 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 […]

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Configuração Inicial de servidor com Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

Configuração Inicial de servidor com Ubuntu 16.04

Quando você cria inicialmente um novo servidor Ubuntu 16.04, existem alguns passos de configuração que você deve tomar no início como parte da configuração básica. Isto aumentará a segurança e a usabilidade do seu servidor e dará uma sólida fundação para as ações…

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