Backup Recovery

How to Set Up SSH Key Authentication on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up SSH Key Authentication on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up set up ssh key authentication on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step carefully […]

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Common Problems 121112

Debian 10 – high CPU and disk I/O from systemd-journald

🟡 Medium   ⏱ 5–30 min  Last verified: 12 March 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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How to Set Up Btrfs Snapshots with Snapper on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up Btrfs Snapshots with Snapper on SLES 12

Introduction This tutorial covers How to Set Up Btrfs Snapshots with Snapper 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 — Check Btrfs Filesystem btrfs filesystem show […]

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Common Problems 112592

Windows Server 2019 – Just-in-Time admin elevation fails through PAM workflows – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 12 March 2020 Affected versions: Windows Server 2019 📖 ~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 Snapshots with LVM on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up Snapshots with LVM on Debian 10

Introduction This guide explains how to Set Up Snapshots with LVM on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with […]

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Common Problems 118600

Ubuntu 16.04 external monitor not detected

🟡 Medium   ⏱ 5–30 min  Last verified: 11 March 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 117921

Ubuntu 18.04 Broken Dependencies and Held Packages

🟡 Medium   ⏱ 5–30 min  Last verified: 11 March 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 rsync Backup Jobs on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up rsync Backup Jobs on Debian 10

Introduction How to Set Up rsync Backup Jobs on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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How to Set Up Hyper-V Nested Virtualisation on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Hyper-V Nested Virtualisation on Windows Server 2019

How to Set Up Hyper-V Nested Virtualisation on Windows Server 2019 Nested virtualisation in Windows Server 2019 Hyper-V allows a virtual machine to run its own Hyper-V hypervisor and create guest VMs inside itself. This capability is invaluable for testing Hyper-V configurations without dedicated hardware, setting up lab environments, training scenarios, and running containerisation workloads […]

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Common Problems 114921

RHEL 8 SELinux Denying httpd Access to Custom Content Path

🟡 Medium   ⏱ 5–30 min  Last verified: 10 March 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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