Ubuntu 18.04

How To Install Web Apps Using Cloudron on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Web Apps Using Cloudron on Ubuntu 18.04

Cloudron is a platform that streamlines the installation and management of apps, like WordPress, Rocket.Chat, Nextcloud, GitLab, OpenVPN, and more, to your server. A key benefit of using Cloudron is that it performs end-to-end deployment of apps. In this tutorial, you’ll install Cloudron on your server then deploy a WordPress site, as an example, to experience how Cloudron performs complete deployment automation.

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How To Migrate Redis Data to a managed databases — step-by-step Linux tutorial on Progressive Robot

How To Migrate Redis Data to a managed databases

Redis provides a number of methods one can use to migrate data from one instance to another, like replication and snapshotting. However, migrations can get complicated when you’re moving data to a Redis instance managed by a cloud provider, as managed databases tend to limit how much control you have over the database’s configuration. This tutorial outlines one method you can use to migrate data to a Redis instance managed by the cloud provider using Redis’s internal MIGRATE command.

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Common Problems 118079

Ubuntu 18.04 LTS UFW Rules Not Applied as Expected

🟡 Medium   ⏱ 5–30 min  Last verified: 15 April 2021 Affected versions: 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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How to Use Ansible to Automate Initial Server Setup on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How to Use Ansible to Automate Initial Server Setup on Ubuntu 18.04

Ansible offers a simple architecture that doesn’t require special software to be installed on nodes. It also provides a robust set of features and built-in modules which facilitate writing automation scripts. This guide explains how to use Ansible to automate the steps contained in our Initial Server Setup Guide for Ubuntu 18.04 servers.

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Common Problems 117892

Ubuntu 18.04 LTS Stuck at GRUB Prompt After Upgrade

🟠 High   ⏱ 5–30 min  Last verified: 13 April 2021 Affected versions: 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 — keystone — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

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

🟡 Medium   ⏱ 10–30 min  Last verified: 13 April 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4480-1 Related CVEs: CVE-2020-12689 CVE-2020-12690 CVE-2020-12691 CVE-2020-12692 Upstream summary: It was discovered that OpenStack Keystone incorrectly handled EC2 credentials. An authenticated attacker with a limited scope could possibly create EC2 […]

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Common Problems 118012

GRUB Rescue Prompt After Disk Layout Change

🟡 Medium   ⏱ 5–30 min  Last verified: 7 April 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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如何在Ubuntu 18.04上安装Python 3并建立本地编程环境 — step-by-step Linux tutorial on Progressive Robot

如何在Ubuntu 18.04上安装Python 3并建立本地编程环境

Python是一种灵活多样的编程语言。它的用途广泛,在脚本、自动化、数据分析、机器学习和后端开发方面都具有优势。Python于1991年首次发行,名字的灵感来源于英国喜剧团体“Monty Python”,因此Python开发团队希望让Python用起来很有趣。易于安装配置、代码风格相对简单直接、有即时的反馈和报错,这些特性让Python成为编程初学者的一个很好选择,也同样适合有经验的程序员。[Python…

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