web server

Common Problems 113409

Windows Server 2012 R2 – Kerberos KRB_AP_ERR_MODIFIED and SPN duplication – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 14 December 2022 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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How to Install Symfony 7 on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Symfony 7 on RHEL 9

Symfony is a mature, enterprise-grade PHP framework built on reusable, decoupled components. Unlike Laravel’s all-in-one approach, Symfony emphasises architectural flexibility — many of its components (HttpFoundation, Console, Validator, Security, DependencyInjection) are used independently by other frameworks including Laravel itself. Symfony’s Dependency Injection Container, event dispatcher, and strict coding standards make it the preferred framework for […]

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How to Install Nginx via AIX Toolbox on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Install Nginx via AIX Toolbox on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to install nginx via aix toolbox on IBM AIX 7.3 […]

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How to Configure Windows Server 2022 with PowerShell DSC — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Windows Server 2022 with PowerShell DSC

Introduction to Podman on Windows Server 2022 Podman is an OCI-compatible container engine developed by Red Hat that runs containers without requiring a central daemon process. Unlike Docker, which relies on a long-running dockerd daemon process running as root, Podman uses a fork-exec model where each container runs as a direct child process of the […]

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Common Problems 111813

Windows Server 2022 – IIS application pool repeatedly stopping – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 9 December 2022 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 Configure Exploit Protection on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Exploit Protection on Windows Server 2022

Overview of Windows Server 2022 Print Services A Windows Server print server centralizes printer management, driver distribution, and print queue administration for an organization. Instead of installing printer drivers on every individual workstation, you deploy them once on the server and Windows automatically distributes them to clients when they connect. Windows Server 2022 includes the […]

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How to Set Up Active Directory Certificate Services on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up Active Directory Certificate Services on Windows Server 2012 R2

How to Set Up Active Directory Certificate Services on Windows Server 2012 R2 Active Directory Certificate Services (AD CS) on Windows Server 2012 R2 provides Public Key Infrastructure (PKI) services for the enterprise, enabling the issuance and management of digital certificates. These certificates support a wide range of security functions: SSL/TLS for internal servers, smart […]

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How to Harden Web Servers with Security Headers, CSP, and HSTS on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Harden Web Servers with Security Headers, CSP, and HSTS on RHEL 9

HTTP security headers are a lightweight but highly effective layer of defence for web applications, instructing browsers to enforce policies that mitigate common attacks like clickjacking, MIME-type sniffing, cross-site scripting (XSS), and protocol downgrade attacks. HSTS (HTTP Strict Transport Security) forces browsers to use HTTPS exclusively, while a Content Security Policy (CSP) controls which resources […]

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How to Configure IIS Web Farm on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure IIS Web Farm on Windows Server 2022

How to Install and Configure Apache Tomcat on Windows Server 2022 Apache Tomcat is the de-facto Java Servlet container for deploying Java web applications on Windows Server. It supports the Jakarta EE (formerly Java EE) Servlet and JSP specifications and is widely used to host Spring Boot applications, REST APIs, and legacy J2EE WAR files. […]

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How to Configure Kubernetes on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Kubernetes on Windows Server 2022

How to Set Up WebDAV in IIS on Windows Server 2022 WebDAV (Web Distributed Authoring and Versioning) extends HTTP to allow clients to read and write files on a remote web server. On Windows Server 2022 with IIS, WebDAV is a built-in feature that integrates tightly with NTFS permissions, IIS authentication, and SSL. This guide […]

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