ubuntu

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

Ubuntu 18.04 — libproxy — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 September 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4673-1 Related CVEs: CVE-2020-26154 CVE-2020-25219 Upstream summary: Li Fei discovered that libproxy incorrectly handled certain PAC files. An attacker could possibly use this issue to cause a crash or execute […]

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Ubuntu 20.04 — opendmarc — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — opendmarc — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 September 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6356-1 Related CVEs: CVE-2020-12272 CVE-2020-12460 Upstream summary: Jianjun Chen, Vern Paxson and Jian Jiang discovered that OpenDMARC incorrectly handled certain inputs. If a user or an automated system were tricked […]

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Настройка брандмауэра с UFW в Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Настройка брандмауэра с UFW в Ubuntu 20.04

UFW — это простой интерфейс управления брандмауэром, скрывающий сложность низкоуровневых технологий фильтрации пакетов, таких как iptables и nftables. Если вы ищете способ защитить вашу сеть и не знаете, какой инструмент для этого использовать, UFW может отлично вам…

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Common Problems 118407

Ubuntu 16.04 LTS intermittent DNS failures with resolvconf

🟡 Medium   ⏱ 5–30 min  Last verified: 24 September 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 […]

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Common Problems 117918

Ubuntu 18.04 LTS – boot drops to initramfs after unclean shutdown – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 24 September 2020 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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How To Install Xibo on Ubuntu 12.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Xibo on Ubuntu 12.04

Xibo is a digital signage platform that is released under an open-source license. The system is made up from two components: first of all there is the server, which is used to create and schedule the layouts; and then there is the client, which downloads all of the relevant information about the currently scheduled layout and displays this on the screen. Here’s how to install Xibo on Ubuntu 12.04.

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How To Install Buildbot on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Buildbot on Ubuntu 16.04

Buildbot is a Python-based continuous integration system for automating software build, test, and release processes. It uses Python’s Twisted library to handle asynchronous communication between a Buildmaster and one or more workers to…

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Создание самоподписанных сертификатов SSL для Apache в Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Создание самоподписанных сертификатов SSL для Apache в Ubuntu 20.04

TLS или протокол безопасности транспортного уровня и предшествующий ему протокол SSL используются для заключения обычного трафика в защищенную оболочку с шифрованием. Используя эту технологию, серверы могут безопасно отправлять информацию клиентам без перехвата сообщений и…

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