A linguagem de programação Python é uma grande ferramenta para utilizar ao trabalhar com números e avaliar expressões matemáticas. Esta qualidade pode ser utilizada para fazer programas úteis. Este tutorial apresenta um exercício de aprendizado para ajudá-lo a fazer um…
Patroni is a Python-based high-availability solution for PostgreSQL that uses a distributed configuration store — in this tutorial, etcd — to manage leader election, automatic failover, and cluster membership. On RHEL 8, both Patroni and etcd are available through the EPEL repository, making the installation straightforward. This guide walks through installing PostgreSQL, etcd, and Patroni, […]
After setting up the bare recommended configuration for a new server, there are often some additional steps that are highly recommended in most cases. In this guide, we’ll continue the initial configuration by tackling some recommended, but optional procedures.
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: OpenBSD 7.5 📖 ~4 min read • Source: OpenBSD 7.5 errata 014_expat Errata topic: Security: expat (All architectures) Issued: November 15, 2024 Related CVEs: CVE-2024-50602 Upstream summary: In libexpat fix crash within function XML_ResumeParser. CVE-2024-50602 Table of contents Symptom & Impact Environment […]
🟢 Low ⏱ 5–15 min Last verified: 6 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-1765 Related CVEs: CVE-2019-8696 CVE-2019-8675 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]
🟡 Medium ⏱ 5–30 min Last verified: 6 October 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 […]
Introduction This tutorial covers How to Set Up SLES 12 for High-Performance Computing on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: zypper […]
🟠 High ⏱ 5–30 min Last verified: 6 October 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]
🟡 Medium ⏱ 10–30 min Last verified: 6 October 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4442-2 Related CVEs: CVE-2018-1000550 CVE-2018-1000671 CVE-2020-10936 Upstream summary: USN-4442-1 fixed vulnerabilities in Sympa. This update provides the corresponding updates for Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. […]
Learn how to render a list or table that scrolls smoothly with thousands of data items using vue-virtual-scroller.
