Networking

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 […]

Read more
How to Set Up RADIUS Authentication with NPS on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up RADIUS Authentication with NPS on Windows Server 2012 R2

How to Set Up RADIUS Authentication with NPS on Windows Server 2012 R2 Network Policy Server (NPS) is Microsoft’s implementation of a RADIUS (Remote Authentication Dial-In User Service) server and proxy, included with Windows Server 2012 R2. NPS centralizes authentication, authorization, and accounting for network access—including VPN connections, 802.1X wired and wireless connections, dial-up connections, […]

Read more
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 […]

Read more
How to Configure Network Authentication Service on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Network Authentication Service on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure network authentication service on ibm aix 7.2 on […]

Read more
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 […]

Read more
How to Set Up Windows Server 2019 Container Monitoring — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Windows Server 2019 Container Monitoring

How to Set Up Windows Server 2019 Container Monitoring Monitoring Windows containers running on Windows Server 2019 is essential for ensuring application health, detecting performance bottlenecks, and responding quickly to failures. Unlike Linux container monitoring, Windows container monitoring has some platform-specific considerations and tool differences. This guide covers setting up comprehensive container monitoring using Windows-native […]

Read more
How to Configure Nginx Load Balancing on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Nginx Load Balancing on RHEL 7

How to Configure Nginx Load Balancing on RHEL 7 As web applications grow in traffic, a single backend server eventually becomes a bottleneck. Nginx’s upstream module provides built-in load balancing that distributes incoming requests across multiple backend servers, improving throughput, redundancy, and fault tolerance. Unlike Nginx Plus, the open-source version included in RHEL 7’s EPEL […]

Read more
Common Problems 114923

RHEL 8 firewalld zone mismatch blocks application traffic

🟡 Medium   ⏱ 5–30 min  Last verified: 9 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 […]

Read more
How to Set Up HAProxy Load Balancer on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up HAProxy Load Balancer on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up set up haproxy load balancer 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 […]

Read more
Common Problems 121120

Debian 10 – unattended-upgrades Leaves Pending Reboot Drift – Controlled Patch Flow

🟡 Medium   ⏱ 5–30 min  Last verified: 8 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 & […]

Read more
CHAT