DNS

Common Problems 111622

Windows Server 2025 SMB File Shares Become Intermittently Slow — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 2 August 2025 Affected versions: Windows Server 2025 📖 ~2 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 Back Up PostgreSQL with pg_dump on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Back Up PostgreSQL with pg_dump on Oracle Linux 10

Introduction This tutorial demonstrates how to Back Up PostgreSQL with pg_dump on Oracle Linux 10 on Oracle Linux 10. 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 10 system with […]

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Common Problems 111119

Windows Server 2025 — Soft quota warning emails not sending from FSRM on Server 2025 — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 2 August 2025 Affected versions: Windows Server 2025 📖 ~2 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 Configure a Static IP Address with Netplan on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Configure DKIM, SPF and DMARC on Ubuntu 24.04

DKIM, SPF, and DMARC are email authentication standards that prevent spoofing and improve email deliverability. This guide configures all three on a Postfix server on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Postfix installed and running Access to your domain DNS records A user with sudo privileges […]

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Common Problems 124099

Oracle Linux 10 – bonded interface fails over poorly because miimon is not configured – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 1 August 2025 Affected versions: Oracle Linux 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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Common Problems 124052

Oracle Linux 10 SELinux AVC Denials After Custom Application Deployment

🟠 High   ⏱ 5–30 min  Last verified: 1 August 2025 Affected versions: Oracle Linux 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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How to Install Grafana 11 on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Grafana 11 on RHEL 10

Introduction Setting up install grafana 11 on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install Grafana 11 on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to validate the […]

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Common Problems 123976

Oracle Linux 10 – dnf install fails with modular dependency conflict – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 1 August 2025 Affected versions: Oracle Linux 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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Common Problems 116508

Ubuntu 24.04 LTS UFW Rules Accidentally Block SSH Access

🔴 Critical   ⏱ 5–30 min  Last verified: 1 August 2025 Affected versions: Ubuntu 24.04 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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How to Set Up Loki and Promtail on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Set Up Loki and Promtail on Oracle Linux 10

Introduction How to Set Up Loki and Promtail on Oracle Linux 10 on Oracle Linux 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting […]

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