Ubuntu 18.04

How To Configure a Galera Cluster with MySQL on Ubuntu 18.04 Servers — step-by-step Linux tutorial on Progressive Robot

How To Configure a Galera Cluster with MySQL on Ubuntu 18.04 Servers

In this guide, you will configure an active-active MySQL Galera cluster with three Ubuntu 18.04 servers. Clustering adds high availability to your MySQL database by distributing changes to different servers. In the event that one of the instances fails, others are quickly available to continue serving. Galera is a database clustering solution that enables you to set up multi-master clusters using synchronous replication.

Read more
Common Problems 118059

Ubuntu 18.04 LTS Apache 503 Service Unavailable Under Load

🟠 High   ⏱ 5–30 min  Last verified: 11 September 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 & […]

Read more
How To Install and Configure Postfix on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Configure Postfix on Ubuntu 18.04

Postfix is a popular open-source Mail Transfer Agent (MTA) that can be used to route and deliver email on a Linux system. It is estimated that around 25% of public mail servers on the internet run Postfix. In this guide, we’ll teach you how to get up and running quickly using the Postfix mail server.

Read more
Common Problems 117919

Ubuntu 18.04 LTS Netplan Misconfiguration Causes No Network

🟠 High   ⏱ 5–30 min  Last verified: 10 September 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 & […]

Read more
Как установить веб-сервер Apache в Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Как установить веб-сервер Apache в Ubuntu 18.04

HTTP сервер Apache является самым широко используемым веб-сервером в мире. Он предоставляет множество удобных функций включая динамически загружаемые модули, широкую поддержку мультимедиа, и интеграцию с другим популярным программным обеспечением. В этом руководстве мы…

Read more
Контейнеризация приложения Node.js для разработки с использованием Docker Compose — step-by-step Docker tutorial on Progressive Robot

Контейнеризация приложения Node.js для разработки с использованием Docker Compose

Если вы активно занимаетесь разработкой приложений, использование Docker может упростить ваш рабочий процесс и процесс развертывания вашего приложения в продакшен. Работа с контейнерами в процессе разработки предоставляет следующие преимущества: Среды…

Read more
Ubuntu 18.04 — okular — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — okular — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 September 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4830-1 Related CVEs: CVE-2018-1000801 Upstream summary: It was discovered that Okular mishandled certain crafted archives during extraction. An attacker could use this vulnerability to write arbitrary files to the filesystem. […]

Read more
Common Problems 118011

Ubuntu 18.04 Bluetooth Stops Working After Update

🟡 Medium   ⏱ 5–30 min  Last verified: 5 September 2019 📖 ~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 […]

Read more
CHAT