August 2020 - Page 56 of 62

How To Configure a Galera Cluster with MariaDB on Debian 9 Servers — step-by-step Linux tutorial on Progressive Robot

How To Configure a Galera Cluster with MariaDB on Debian 9 Servers

In this guide, you will configure an active-active MariaDB Galera cluster. For demonstration purposes, you will configure and test three Debian 9 Droplets that will act as nodes in the cluster. MariaDB is an open source relational database system that is fully compatible with the popular MySQL RDBMS system. Galera is a database clustering solution that enables you to set up multi-master clusters using synchronous replication.

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¿Cómo Instalar y Configurar VNC en Ubuntu 16.04? — step-by-step Linux tutorial on Progressive Robot

¿Cómo Instalar y Configurar VNC en Ubuntu 16.04?

VNC o Virtual Network Computing es un sistema de conexión que le permite utilizar su teclado y su ratón para interactuar con un entorno de escritorio gráfico en un servidor remoto. Facilita la gestión de archivos, software y configuración en un servidor remoto para usuarios…

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Common Problems 121181

Debian 10 – Fail2ban Not Banning with nftables Backend – Jail Action Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 3 August 2020 Affected versions: Debian 10 📖 ~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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Ubuntu 20.04 — glib-networking — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — glib-networking — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 August 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4405-1 Related CVEs: CVE-2020-13645 Upstream summary: It was discovered that glib-networking skipped hostname certificate verification if the application failed to specify the server identity. A remote attacker could use this […]

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Common Problems 117620

Ubuntu 20.04 LTS Login Fails Due to Corrupted User Profile

🟡 Medium   ⏱ 5–30 min  Last verified: 3 August 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 115128

RHEL 8 missing grub2 menu entry after kernel cleanup task

🟡 Medium   ⏱ 5–30 min  Last verified: 3 August 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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How to Install Apache on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Install Apache on SLES 12

Introduction This tutorial covers How to Install Apache on SLES 12 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. Step 1 — Install Apache zypper install -y apache2 Step 2 — Enable […]

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