How to set up and configure an OpenVPN Server on Ubuntu
Learn how to set up and configure an OpenVPN server on Ubuntu. Secure your connections with step-by-step instructions and best practices.
Primeiros passos com a rede definida por software e a criação de uma VPN com o ZeroTier One
Atualmente, cada vez mais os projetos de software são construídos por equipes cujos membros trabalham em conjunto em localidades geográficas diferentes. Embora este fluxo de trabalho tenha muitas vantagens claras, existem casos onde tais equipes podem querer vincular seus…
Debian 9 – GRUB Rescue Prompt After Kernel Update – Restore Bootability
🔴 Critical ⏱ 5–30 min Last verified: 19 August 2019 Affected versions: Debian 9 📖 ~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 & […]
Ubuntu 14.04 LTS CIFS Mount Fails at Boot with Credential Timing
🟡 Medium ⏱ 5–30 min Last verified: 19 August 2019 Affected versions: 14.04 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 & […]
Ubuntu 16.04 LTS severe swap thrashing and performance collapse
🟡 Medium ⏱ 5–30 min Last verified: 19 August 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 […]
openSUSE Tumbleweed — cscope — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2004-2541 CVE-2006-4262 Upstream summary: Buffer overflow in Cscope 15.5, and possibly multiple overflows, allows remote attackers to execute arbitrary code via a C file with […]
Установка и настройка Nextcloud в Ubuntu 18.04
Nextcloud (ответвление проекта ownCloud) — напоминающий Dropbox файлообменный сервер для централизованного хранения персонального контента, в том числе документов и изображений. Отличие Nextcloud в том, что весь его функционал реализован с открытым…
Alpine Linux edge — confuse — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 3.2.2-r0 📖 ~4 min read • Source: Alpine secdb entry — confuse 3.2.2-r0 Related CVEs: CVE-2018-14447 Upstream summary: Alpine main repository for vedge ships confuse 3.2.2-r0 which addresses CVE-2018-14447. Table of contents Symptom & Impact Environment […]
Comment durcir OpenSSH sur Ubuntu 18.04
L’auteur a choisi que le Electronic Frontier Foundation Inc recevrait une donation dans le cadre du programme Write for Donations. Les serveurs Linux sont souvent…
Debian 9 — apache2 — multiple vulnerabilities (7 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 19 August 2019 Affected versions: Debian 9 (stretch) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2017-15710 CVE-2017-3167 CVE-2017-9788 CVE-2017-9798 CVE-2018-17189 CVE-2019-9517 CVE-2019-10092 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution […]
