Ubuntu 18.04

Common Problems 118087

Ubuntu 18.04 LTS – CA certificate trust chain errors break HTTPS endpoints – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 29 January 2020 Affected versions: Ubuntu 18.04 LTS 📖 ~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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Ubuntu 18.04 — uwsgi — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — uwsgi — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 January 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5054-1 Related CVEs: CVE-2020-11984 Upstream summary: Felix Wilhelm discovered a buffer overflow flaw in the mod_proxy_uwsgi module. An attacker could use this vulnerability to provoke an information disclosure or potentially […]

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Ubuntu 18.04 — liblivemedia — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — liblivemedia — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 January 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4853-1 Related CVEs: CVE-2018-4013 CVE-2019-6256 CVE-2019-7314 CVE-2019-9215 Upstream summary: It was discovered that liveMedia incorrectly handled certain network packets. An attacker could possibly use this issue to execute arbitrary code. […]

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How To Troubleshoot MySQL Queries — step-by-step Linux tutorial on Progressive Robot

How To Troubleshoot MySQL Queries

Sometimes users run into problems once they begin issuing queries on their data. In some database systems, including MySQL, query statements in must end in a semicolon (;) for the query to complete, as in the following example…

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Common Problems 117973

Ubuntu 18.04 LTS NTP drift causes certificate and auth failures

🟡 Medium   ⏱ 5–30 min  Last verified: 27 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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Ubuntu 18.04 — libmodbus — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

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

🟢 Low   ⏱ 5–15 min  Last verified: 26 January 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5173-1 Related CVEs: CVE-2019-14462 CVE-2019-14463 Upstream summary: It was discovered that libmodbus incorrectly handled inputs. An attacker could possibly use this issue to cause a denial of service or other […]

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Настройка Django с Postgres, Nginx и Gunicorn в Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Настройка Django с Postgres, Nginx и Gunicorn в Ubuntu 18.04

Django — это мощная веб-система, помогающая создать приложение или сайт Python с нуля. Django включает упрощенный сервер разработки для локального тестирования кода, однако для серьезных производственных задач требуется более защищенный и мощный веб-сервер. В этом руководстве…

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Comment installer Git sur Ubuntu 18.04 [Démarrage rapide] — step-by-step Linux tutorial on Progressive Robot

Comment installer Git sur Ubuntu 18.04 [Démarrage rapide]

Les systèmes de contrôle de version vous aident à partager et à collaborer sur des projets de développement de logiciels. Git est l’un des systèmes de contrôle de version les plus populaires actuellement disponibles. Ce tutoriel vous guidera pour installer et configurer Git…

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How To Monitor Your Managed PostgreSQL Database Using Nagios Core on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Monitor Your Managed PostgreSQL Database Using Nagios Core on Ubuntu 18.04

Database monitoring is key to understanding how a database performs at various points in time. It can help you uncover hidden usage problems and bottlenecks, and will also allow you to be in the loop of everything that is happening to your database. In this tutorial, you will set up PostgreSQL database monitoring in Nagios Core using the check_postgres Nagios plugin and set up Slack-based alerting.

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