Backup Recovery

How to Manage Systemd Services on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Manage Systemd Services on Oracle Linux 9

Introduction How to Manage Systemd Services on Oracle Linux 9 on Oracle Linux 9 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 configuration is […]

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Debian 11 — storebackup — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — storebackup — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 February 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-3146 CVE-2005-3147 CVE-2005-3148 CVE-2020-7040 Upstream summary: StoreBackup before 1.19 allows local users to perform unauthorized operations on arbitrary files via a symlink attack on temporary files. Table of […]

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Common Problems 111684

Windows Server 2022 — Hyper-V Replica initial sync stalls at 0 percent — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 9 February 2023 Affected versions: Windows Server 2022 📖 ~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 Data Deduplication on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up Data Deduplication on Windows Server 2022

Introduction to Data Deduplication Data Deduplication (dedup) is a built-in storage optimization feature in Windows Server 2022 that reduces disk space consumption by identifying and eliminating duplicate data chunks across files on a volume. Rather than storing identical byte sequences multiple times, dedup stores each unique chunk once in a chunk store and replaces duplicate […]

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Common Problems 114620

RHEL 9 Performance Drop Due to THP and Swappiness Misconfiguration

🟡 Medium   ⏱ 5–30 min  Last verified: 8 February 2023 📖 ~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 K3s Lightweight Kubernetes on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up K3s Lightweight Kubernetes on Oracle Linux 9

Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying set up k3s lightweight kubernetes on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up K3s Lightweight Kubernetes on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, and the […]

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How to Configure Volume Shadow Copy Service (VSS) on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Volume Shadow Copy Service (VSS) on Windows Server 2022

What Is the Volume Shadow Copy Service? The Volume Shadow Copy Service (VSS) is a Windows infrastructure component that enables the creation of consistent, point-in-time snapshots of disk volumes without requiring application downtime. Introduced in Windows Server 2003, VSS has been refined through every subsequent release and remains a cornerstone feature in Windows Server 2022. […]

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Debian 11 — backupninja — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — backupninja — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 February 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-3111 Upstream summary: The handler code for backupninja 0.8 and earlier creates temporary files with predictable filenames, which allows local users to modify arbitrary files via a symlink […]

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How to Configure Oracle Linux 9 with FCoE Storage — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure Oracle Linux 9 with FCoE Storage

Introduction This tutorial demonstrates how to Configure Oracle Linux 9 with FCoE Storage on Oracle Linux 9. 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 9 system with the default […]

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Common Problems 111867

Windows Server 2022 — Windows Server Backup fails because VSS writer is in failed state — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 7 February 2023 Affected versions: Windows Server 2022 📖 ~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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