Ubuntu 20.04

How To Use the LEMP 1-Click Install on the cloud provider — step-by-step Linux tutorial on Progressive Robot

How To Use the LEMP 1-Click Install on the cloud provider

LEMP stack is a solution stack that employs a specific group of software to host web applications on a server. This term is an acronym which represents the Linux operating system with the Nginx web server. The site data is stored in a MySQL database, and dynamic content is processed by PHP. This tutorial will guide you through spinning up a cloud servers with LEMP stack pre-installed, using the the cloud provider LEMP 1-Click App.

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Common Problems 117492

Ubuntu 20.04 LTS – disk full under /var/log causes service failures – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 January 2022 Affected versions: Ubuntu 20.04 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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Common Problems 117508

Ubuntu 20.04 LTS – cloud-init stalls and first boot never completes

🟠 High   ⏱ 5–30 min  Last verified: 16 January 2022 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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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Ubuntu 20.04 — jupyter-notebook — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — jupyter-notebook — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 15 January 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5585-1 Related CVEs: CVE-2018-19351 CVE-2018-21030 CVE-2019-10255 CVE-2019-10856 CVE-2019-9644 CVE-2020-26215 CVE-2022-24758 CVE-2022-29238 Upstream summary: It was discovered that Jupyter Notebook incorrectly handled certain notebooks. An attacker could possibly use this issue […]

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Ubuntu 20.04へのDocker Composeのインストールおよび使用方法 — step-by-step Docker tutorial on Progressive Robot

Ubuntu 20.04へのDocker Composeのインストールおよび使用方法

Docker Composeは、YAMLファイルの定義に基づいてマルチコンテナアプリケーション環境を実行できるツールです。サービス定義を使用して、ネットワークやデータ量を共有できる複数のコンテナで完全にカスタマイズ可能な環境を構築します。本ガイドでは、Ubuntu 20.04サーバーにDocker Composeをインストールし、このツールを使用する方法を説明します。

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Процедура установки и настройки Laravel с помощьтю Nginx на сервере Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Процедура установки и настройки Laravel с помощьтю Nginx на сервере Ubuntu 20.04

Laravel — это инфраструктура PHP с открытым исходным кодом, включающая инструменты и ресурсы для создания современных приложений PHP. Благодаря полной экосистеме с встроенными функциями популярность Laravel за последние годы…

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How To Install R on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Install R on Ubuntu 20.04

An open-source programming language, R is widely used for performing data analysis and statistical computing. Supported by the R Foundation for Statistical Computing, it is an increasingly popular and extensible language with an active community. R offers many user-generated…

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

Ubuntu 20.04 — firejail — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 January 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5141-1 Related CVEs: CVE-2021-26910 Upstream summary: Roman Fiedler discovered that a race condition existed in Firejail when using OverlayFS to prevent writes to the underlying file system. A local attacker […]

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Common Problems 117500

Ubuntu 20.04 LTS Excessive Swap Usage Causes Slowness

🟡 Medium   ⏱ 5–30 min  Last verified: 11 January 2022 📖 ~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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