Ubuntu 18.04

Common Problems 117964

Ubuntu 18.04 root partition out of disk space

🟡 Medium   ⏱ 5–30 min  Last verified: 27 October 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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Ubuntu 18.04 — node-bl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — node-bl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 October 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5098-1 Related CVEs: CVE-2020-8244 Upstream summary: It was discovered that bl didn't properly sanitize the inputs. An attacker could use this to leak sensitive information. Table of contents Symptom & […]

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Common Problems 118083

MySQL Service Won’t Start Due to InnoDB Error

🟡 Medium   ⏱ 5–30 min  Last verified: 22 October 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 117893

Failed to Fetch Repository 404 During apt update

🟡 Medium   ⏱ 5–30 min  Last verified: 22 October 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 117889

Ubuntu 18.04 Stuck on Boot Splash After Kernel Update

🟡 Medium   ⏱ 5–30 min  Last verified: 22 October 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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Ubuntu 18.04 — musl — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — musl — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 October 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5990-1 Related CVEs: CVE-2019-14697 CVE-2020-28928 Upstream summary: It was discovered that musl did not handle certain i386 math functions properly. An attacker could use this vulnerability to cause a denial […]

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[Краткое руководство] по установке Nginx в Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

[Краткое руководство] по установке Nginx в Ubuntu 18.04

Nginx — один из самых популярных в мире веб-серверов, на базе которого размещены некоторые из самых крупных сайтов интернета с огромным трафиком. Обычно он использует ресурсы эффективнее, чем Apache, и может использоваться как веб-сервер или обратный прокси-сервер. В этом…

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How To Harden OpenSSH Client on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Harden OpenSSH Client on Ubuntu 18.04

Linux servers are often administered remotely using SSH by connecting to an OpenSSH server, which is the default SSH server software used within Ubuntu, Debian, CentOS, FreeBSD, and most other Linux/BSD-based systems. Significant effort is put into securing the server-side aspect of SSH, as SSH acts as the entry into your server. In this tutorial, you will harden your OpenSSH client in order to help ensure that outgoing SSH connections are as secure as possible.

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