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How to Write Advanced PowerShell Scripts for Windows Server 2012 R2 Administration — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Write Advanced PowerShell Scripts for Windows Server 2012 R2 Administration

How to Write Advanced PowerShell Scripts for Windows Server 2012 R2 Administration PowerShell is the cornerstone of modern Windows Server administration. On Windows Server 2012 R2, PowerShell 4.0 ships by default, bringing with it Desired State Configuration, enhanced remoting, workflow capabilities, and a mature scripting ecosystem. For sysadmins managing dozens or hundreds of servers, mastering […]

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How to Configure RDS RemoteApp on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure RDS RemoteApp on Windows Server 2012 R2

How to Configure RDS RemoteApp on Windows Server 2012 R2 RemoteApp is a Remote Desktop Services feature that allows individual applications to be published from RD Session Host servers and delivered to users as if the applications were running locally on their workstations. Instead of seeing a full remote desktop, users see only the application […]

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How to Configure Remote Desktop Gateway on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Remote Desktop Gateway on Windows Server 2019

How to Configure Remote Desktop Gateway on Windows Server 2019 Remote Desktop Gateway (RD Gateway) is a Windows Server 2019 role service that enables authorised remote users to connect to internal network resources over HTTPS, eliminating the need to expose RDP port 3389 directly to the internet. RD Gateway encapsulates RDP traffic within HTTPS (port […]

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How to Enable OCSP Stapling on Nginx on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Enable OCSP Stapling on Nginx on Debian 9

Introduction This guide explains how to Enable OCSP Stapling on Nginx on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with […]

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How to Configure OpenSCAP Security Compliance on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure OpenSCAP Security Compliance on Debian 10

Introduction How to Configure OpenSCAP Security Compliance 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 10. […]

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How to Set Up GlusterFS Distributed Storage on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up GlusterFS Distributed Storage on Debian 9

Introduction This guide explains how to Set Up GlusterFS Distributed Storage on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with […]

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How to Secure the MariaDB Installation on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Secure the MariaDB Installation on Debian 10

Introduction This guide explains how to Secure the MariaDB Installation 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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Common Problems 113635

Windows Server 2012 R2 — Jumbo frame MTU mismatch across virtual and physical switches fragments storage traffic — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 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 Install and Configure Tomcat 9 on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install and Configure Tomcat 9 on Debian 10

Introduction This guide explains how to Install and Configure Tomcat 9 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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How to Set Up a Certificate Authority with OpenSSL on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up a Certificate Authority with OpenSSL on Debian 10

Introduction Deploying set up a certificate authority with openssl 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. […]

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