Relationale Datenbank-Managementsysteme sind ein wichtiger Bestandteil zahlreicher Websites und Anwendungen. Sie stellen eine strukturierte Art und Weise zur Speicherung, Organisation und zum Zugriff auf Informationen bereit. PostgreSQL oder…
Sandboxing is a computer security technique that focuses on isolating a program or process from parts of a system that it does not need to interact with during normal operation. In this tutorial you will run through a practical demonstration of how to use systemd’s sandboxing techniques on Ubuntu 20.04 for an efficient workflow to implement and to test these techniques.
🔴 Critical ⏱ 5–30 min Last verified: 5 November 2021 Affected versions: Ubuntu 20.04 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 […]
Let’s Encrypt est une autorité de certification (CA) qui fournit un moyen facile d’obtenir et d’installer des certificats TLS/SSL gratuits, permettant…
Jekyll is a static-site generator that provides some of the benefits of a Content Management System (CMS) while avoiding the performance and security issues introduced by such database-driven sites.
🟢 Low ⏱ 5–15 min Last verified: 2 November 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5194-1 Related CVEs: CVE-2021-34813 Upstream summary: Denis Kasak discovered that Olm was not verifying the length of input being processed by the olm_pk_decrypt module, which introduced a stack-based buffer overflow […]
O Nginx é um dos servidores Web mais populares no mundo e é responsável por hospedar alguns dos sites de maior tráfego na Internet. Ele é uma escolha leve que pode ser usado como servidor web ou proxy reverso. Neste guia, vamos discutir como instalar…
🟡 Medium ⏱ 5–30 min Last verified: 1 November 2021 Affected versions: Ubuntu 20.04 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 […]
Ao criar um servidor do Ubuntu 20.04, deve-se executar alguns passos de configuração importantes como parte da configuração básica. Esses passos aumentarão a segurança e a usabilidade do seu servidor e darão a você uma base sólida para ações subsequentes.
🟢 Low ⏱ 5–15 min Last verified: 31 October 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4707-1 Related CVEs: CVE-2021-3139 Upstream summary: It was discovered that TCMU lacked a check for transport-layer restrictions, allowing remote attackers to read or write files via directory traversal in an […]
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