Ubuntu 20.04にNextcloudをインストールして設定する方法
Nextcloudは、ownCloudからフォークして誕生したもので、Dropboxのようにドキュメントや写真などの個人的なコンテンツを集中的に保存できるファイル共有サーバーです。このチュートリアルでは、Ubuntu 20.04サーバーで、Nextcloudインスタンスをインストールして設定します。
Ubuntu 20.04 — velocity — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 31 October 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6281-1 Related CVEs: CVE-2020-13936 Upstream summary: Alvaro Munoz discovered that Velocity Engine incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted […]
Comment installer Linux, Nginx, MySQL, PHP (pile LEMP) sur Ubuntu 20.04
La pile logicielle LEMP est un groupe de logiciels qui peuvent être utilisés pour servir des pages web dynamiques et des applications web écrites en PHP. Il s’agit d’un acronyme qui décrit un système d’exploitation Linux, avec un serveur Web Nginx (prononcé…
Einrichten und Konfigurieren einer Zertifizierungsstelle (CA) unter Ubuntu 20.04
Eine Zertifizierungsstelle (Certificate Authority, CA) ist eine Stelle, die für die Ausstellung digitaler Zertifikate zur Überprüfung von Identitäten im Internet verantwortlich ist. Obwohl öffentliche CAs eine beliebte Wahl…
Ubuntu 20.04 keyboard layout keeps resetting
🟡 Medium ⏱ 5–30 min Last verified: 29 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 […]
Ubuntu 20.04 — ruby-websocket-extensions — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 29 October 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4502-1 Related CVEs: CVE-2020-7663 Upstream summary: It was discovered that websocket-extensions does not properly parse special headers. A remote attacker could use this issue to cause regex backtracking, resulting in […]
Ubuntu 20.04 LTS apt Lock Contention During Auto Updates
🟡 Medium ⏱ 5–30 min Last verified: 28 October 2020 Affected versions: 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 & […]
How To Use Apache as a Reverse-Proxy with mod_proxy on Ubuntu 20.04
In this tutorial, you’ll set up Apache as a basic reverse proxy using the mod_proxy extension to redirect incoming connections to one or several backend servers running on the same network. This tutorial uses a backend written with the Flask web framework, but you can use any backend server you prefer.
How to Keep Ubuntu 20.04 Servers Updated
the cloud provider makes it possible for you to run as many droplets as you need for a project with one click. However, it’s more straightforward to deploy a server than it is to maintain one, and as you scale up your infrastructure, and droplets end up having longer project lifespans than you originally envisioned, you may find that you have some unanswered questions about maintenance. There are many steps you can take to ensure your servers will continue to work securely without future intervention.
Ubuntu 20.04 Stuck on Boot Splash After Updates
🟡 Medium ⏱ 5–30 min Last verified: 25 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 […]
