July 2021 - Page 25 of 69

How to Use Percona XtraBackup for MySQL Hot Backups on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Use Percona XtraBackup for MySQL Hot Backups on RHEL 9

Percona XtraBackup is the industry-standard open-source tool for online, non-blocking hot backups of MySQL and MariaDB InnoDB databases. Unlike mysqldump, which produces a logical SQL dump and requires more time for large databases, XtraBackup performs a physical backup — copying InnoDB data files directly while MySQL is running, without acquiring table locks that would block […]

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Cómo configurar y invocar funciones en Go — step-by-step Programming tutorial on Progressive Robot

Cómo configurar y invocar funciones en Go

Una función es una sección de código que, una vez definida, se puede volver a utilizar. Las funciones se utilizan para facilitar más la comprensión de su código mediante su división en tareas pequeñas y comprensibles que se pueden utilizar más de una vez en su…

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FreeBSD 13 — uriparser — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — uriparser — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: uriparser — Multiple vulnerabilities Related CVEs: CVE-2018-19198 CVE-2018-19199 CVE-2018-19200 CVE-2021-46141 CVE-2021-46142 Upstream summary: Upstream project reports: Fix a bug affecting both uriNormalizeSyntax* and uriMakeOwner* functions where the text range in […]

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Oracle Linux 8 — .NET 6.0 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET 6.0 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-6058)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6058 Related CVEs: CVE-2022-34716 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Common Problems 122602

Daemon Fails Because Missing Shared Library After pkg Operations

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: FreeBSD 14 📖 ~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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Common Problems 122522

NTP Drift Causes TLS and pkg Failures

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: FreeBSD 14 📖 ~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 Set Up WireGuard VPN on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up WireGuard VPN on FreeBSD 13 (ON-FREEBSD-13)

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up wireguard vpn on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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Common Problems 118553

Ubuntu 16.04 LTS – kernel panic after package updates – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Ubuntu 16.04 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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