ubuntu

How to Install MemSQL on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How to Install MemSQL on Ubuntu 14.04

MemSQL is a type of in-memory database that can serve faster reads and writes than a traditional database. Even though it is a new technology, it speaks the MySQL protocol, so it feels very familiar to work with.

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How To Install Discourse on Ubuntu 16.04 — step-by-step Docker tutorial on Progressive Robot

How To Install Discourse on Ubuntu 16.04

Discourse is an open-source discussion platform. It can be used as a mailing list, a discussion forum, or a long-form chat room. In this tutorial, we’ll install Discourse in an isolated environment using Docker, a containerization application.

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Ubuntu 18.04 — commons-beanutils — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — commons-beanutils — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 June 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4766-1 Related CVEs: CVE-2014-0114 CVE-2019-10086 Upstream summary: It was discovered that Apache Commons BeanUtils improperly handled certain input. An attacker could possibly use this vulnerability to cause a crash or […]

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Common Problems 117999

Ubuntu 18.04 LTS Failed to Fetch Repository Metadata

🟡 Medium   ⏱ 5–30 min  Last verified: 6 June 2019 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 — flightcrew — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — flightcrew — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 6 June 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4055-1 Related CVEs: CVE-2019-13032 CVE-2019-13241 CVE-2019-13453 Upstream summary: Mike Salvatore discovered that FlightCrew improperly handled certain malformed EPUB files. An attacker could potentially use this vulnerability to cause a denial […]

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How to Use Ansible Roles to Abstract your Infrastructure Environment — step-by-step Linux tutorial on Progressive Robot

How to Use Ansible Roles to Abstract your Infrastructure Environment

This tutorial will explore how to create roles with templates and static files. Once you are familiar with the fundamentals of building roles, we’ll use [Ansible Galaxy](https://galaxy.ansible.com/) to incorporate community contributed roles into playbooks. By the end of this tutorial you will be able to create your own environment specific roles for your servers and use them in your own playbooks.

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Common Problems 117936

Ubuntu 18.04 LTS – netplan apply fails due to YAML syntax error – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 June 2019 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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