Networking

Common Problems 115077

systemd-resolved Not Used and DNS Queries Intermittently Fail

🟡 Medium   ⏱ 5–30 min  Last verified: 27 November 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 Set Up Magento on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Magento on Oracle Linux 8

Introduction This tutorial demonstrates how to Set Up Magento on Oracle Linux 8 on Oracle Linux 8. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 8 system with the default […]

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Создание резервного пула хранения данных с помощью GlusterFS в Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Создание резервного пула хранения данных с помощью GlusterFS в Ubuntu 20.04

Предыдущая версия данного обучающего руководства была написана Джастином Эллингвудом. При хранении любых важных данных очень рискованно иметь единую точку отказа. Хотя многие базы данных и другие программы позволяют…

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How to Set Up Windows Server 2019 SR-IOV — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Windows Server 2019 SR-IOV

How to Set Up Windows Server 2019 SR-IOV Single Root I/O Virtualization (SR-IOV) is a PCI-SIG specification that allows a single physical PCIe network adapter to present multiple virtual functions (VFs) directly to virtual machines, bypassing the Hyper-V virtual switch and the software network stack. This provides near-native network performance in VMs with ultra-low latency […]

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How to Install WooCommerce on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install WooCommerce on Oracle Linux 8

Introduction Setting up install woocommerce on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install WooCommerce on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]

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How to Install and Configure Dovecot IMAP Server on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install and Configure Dovecot IMAP Server on RHEL 8

Dovecot is a high-performance, secure IMAP and POP3 server that works seamlessly alongside Postfix to deliver a complete mail server stack on RHEL 8. While Postfix handles sending and receiving mail via SMTP, Dovecot allows mail clients like Thunderbird or Outlook to retrieve messages using IMAP or POP3. Dovecot is also SELinux-aware and actively maintained, […]

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Common Problems 121511

Debian 9 – Network Interface Rename Breaks Connectivity – Persistent Naming Fix

🟠 High   ⏱ 5–30 min  Last verified: 25 November 2020 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 & […]

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How to Set Up Oracle Linux 8 in AWS — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Oracle Linux 8 in AWS

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up oracle linux 8 in aws both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Oracle Linux 8 in AWS, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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How to Use PowerShell to Manage Hyper-V on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Use PowerShell to Manage Hyper-V on Windows Server 2012 R2

How to Use PowerShell to Manage Hyper-V on Windows Server 2012 R2 PowerShell is the most powerful and efficient way to manage Hyper-V on Windows Server 2012 R2. The Hyper-V module contains over 150 cmdlets covering every aspect of virtual machine lifecycle management, virtual switch configuration, storage management, networking, replication, and host configuration. Mastering PowerShell […]

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