Networking

Common Problems 113565

Windows Server 2012 R2 — Affinity mode mismatch causes session stickiness failures for stateful applications — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 29 April 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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How to Write Ansible Playbooks for Debian 10 Systems — step-by-step Debian 10 tutorial on Progressive Robot

How to Write Ansible Playbooks for Debian 10 Systems

Introduction This guide explains how to Write Ansible Playbooks for Debian 10 Systems 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 the […]

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How to Install and Configure Rundeck on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install and Configure Rundeck on Debian 10

Introduction This guide explains how to Install and Configure Rundeck 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 the […]

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How to Install .NET Core 3.1 on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install .NET Core 3.1 on Debian 10

Introduction This guide explains how to Install .NET Core 3.1 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 the […]

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How to Configure tcpdump on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure tcpdump 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 tcpdump on ibm aix 7.2 on IBM AIX […]

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How to Configure Virtual Network Peering on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Virtual Network Peering on Windows Server 2016

How to Set Up Windows Server 2016 Virtual Network Peering Virtual network peering allows two separate virtual networks within a Windows Server 2016 SDN environment to communicate with each other as if they were a single network, without the need to route traffic through a gateway or external device. This is analogous to VNet peering […]

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Common Problems 115107

Kdump Service Enabled but Crash Dumps Not Generated

🟡 Medium   ⏱ 5–30 min  Last verified: 26 April 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 Port Knocking on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up Port Knocking on Debian 10

Introduction Deploying set up port knocking on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian […]

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