Ubuntu 16.04

Ubuntu 16.04 — pulseaudio — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — pulseaudio — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • March 22, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 22 March 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4640-1 Related CVEs: CVE-2020-16123 CVE-2020-15710 CVE-2020-11931 https://launchpad.net/bugs/1877102 Upstream summary: James Henstridge discovered that an Ubuntu-specific patch caused PulseAudio to incorrectly handle snap client connections. An attacker could possibly use this […]

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Common Problems 118526

Ubuntu 16.04 LTS – swap not enabled after reboot

  • March 21, 2021
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 21 March 2021 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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Common Problems 118425

NO_PUBKEY and Signature Verification Errors in apt

🟡 Medium   ⏱ 5–30 min  Last verified: 16 March 2021 📖 ~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 SSL/TLS for MySQL on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Configure SSL/TLS for MySQL on Ubuntu 16.04

  • March 15, 2021
  • Linux
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MySQL is the most popular open-source relational database management system in the world. Modern package managers have reduced some of the friction to getting MySQL up and running, but there are still some configuration that should be done after installation. One of the most…

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Ubuntu 16.04 — recutils — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — recutils — multiple vulnerabilities (13 CVEs) — patch and remediation guide

  • March 13, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 13 March 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7137-1 Related CVEs: CVE-2019-11637 CVE-2019-11638 CVE-2019-11639 CVE-2019-11640 CVE-2019-6455 CVE-2019-6456 CVE-2019-6457 CVE-2019-6458  +5 more Upstream summary: It was discovered that recutils incorrectly handled memory when parsing comments with the recparser utility. […]

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How To Manage Logfiles with Logrotate on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Manage Logfiles with Logrotate on Ubuntu 16.04

  • March 13, 2021
  • Linux
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Logrotate is a system utility that manages the automatic rotation and compression of log files. If log files were not rotated, compressed, and periodically pruned, they would eventually consume all available disk space on a system. In this article, we will explore the default Logrotate configuration, then configure log rotation for a fictional custom application.

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Common Problems 118502

Ubuntu 16.04 Interface Fails to Come Up After /etc/network/interfaces Edit

  • March 12, 2021
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 12 March 2021 📖 ~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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¿Cómo Instalar y Utilizar PostgreSQL en Ubuntu 16.04? — step-by-step Linux tutorial on Progressive Robot

¿Cómo Instalar y Utilizar PostgreSQL en Ubuntu 16.04?

  • March 12, 2021
  • Linux
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Los sistemas de administración de bases de datos relacionales son un componente clave en muchos sitios y aplicaciones web. Estos proveen un camino estructurado para almacenar, organizar y acceder a información. PostgreSQL, o Postgres, es un sistema de administración de…

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Common Problems 118433

Ubuntu 16.04 LTS – network interface names changed after kernel update – Fix & Prevention

  • March 11, 2021
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 11 March 2021 Affected versions: Ubuntu 16.04 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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