Sardar Mudassar Ali Khan's contributions

Set up Swagger/OpenAPI in an ASP.NET Core MVC project using Swashbuckle, configure API routing and middleware, and test documented endpoints in Swagger UI.

Learn why EF Core design-time migrations can log HostAbortedException and table-sharing warnings, and how to update Program.cs and entity relationships to resolve them.

Learn how to prevent ASP.NET Core API endpoints from redirecting to HTML login pages and safely parse decimal values from external financial payloads.

Learn to implement resource-based authorization in ASP.NET Core MVC, using custom handlers to restrict article edits and deletes to record owners or administrators.

Learn to configure ASP.NET Core policy-based authorization using claims, custom requirements and handlers, controller policies, and imperative checks in Razor views.

Learn how to configure ASP.NET Core Identity roles, seed an admin user, protect MVC controllers with role-based authorization, and conditionally display Razor UI elements.

Set up cookie-based authentication in an ASP.NET Core MVC app using Identity, Entity Framework Core, SQL Server, and registration and login controllers.

Secure a self-hosted ASP.NET Core and SQL Server Docker stack on Ubuntu using iptables, persistent volumes, scheduled backups, Fail2Ban, and Telegram health alerts.

Deploying Jenkins using Docker on an Azure Linux Virtual Machine is one of the cleanest and most efficient ways to establish a self-hosted Continuous Integration and Continuous Deployment (CI/CD) pipeline. Using Docker isolates Jenkins from the host operating system, preventing dependency conflicts

Learn how to deploy Grafana on an Azure Linux VM using Docker Compose, configure Azure NSG port 3000 access, persist data, and secure the Grafana dashboard.

Learn how to install Docker Engine on Ubuntu, configure the official Docker repository, verify the installation, enable startup, and run Docker commands without sudo.

By combining OpenSSH's built-in internal-sftp subsystem with a properly permissioned ChrootDirectory, you have established a robust, secure, and isolated file transfer environment. This setup ensures that external partners or internal applications can move files safely without ever exposing your core operating system shell.

Learn how to run SQL Server 2022 in Docker on Linux, configure port 1433 and firewalls, and connect remotely from Windows using SQL Server Management Studio.

Deploying a containerised enterprise .NET application and a companion database behind a managed Linux web host introduces multiple abstraction layers. A breakdown in any single tier from background thread initialisation to firewall NAT rules—can prevent your application from serving traffic. This technical guide outlines a real-world field diagnosis of the five core failure points encountered when hosting a .NET API and SQL Server container behind a reverse proxy.

Learn how to troubleshoot .NET container deployment failures involving Kestrel, Docker networking, reverse proxies, SQL Server connectivity, firewall rules, and port mapping.

Learn how to deploy a .NET 9 application on a cPanel-managed Ubuntu server using Docker, Jenkins CI/CD, Apache reverse proxy, persistent Data Protection keys, and consistent NuGet package versions to resolve 502, 403, and authentication issues.

Map your custom domain to Azure App Service. Learn to configure DNS, add bindings, and secure with free managed SSL/TLS for HTTPS.

Map your custom domain to an Azure VM. Learn to set static IPs, configure NSG rules, update DNS, and bind your web server for seamless access.

Master mapping custom subdomains to Render Cloud. This guide covers GoDaddy DNS, Render setup, CORS, and verification for a professional API endpoint.

Master Azure Database for PostgreSQL incident response & disaster recovery. Learn PITR, HA, Geo-Restore, and post-incident checks to minimize downtime.

Master Azure PostgreSQL backups! Learn to configure operational (7-35 days) & vaulted (10 years) backups via Azure Portal for disaster recovery.

Build resilient, event-driven .NET apps with MassTransit & RabbitMQ. Decouple services, handle spikes, and ensure fault tolerance for high concurrency.

Enhance .NET Core production monitoring with custom health checks. Ensure application health, database connectivity, and downstream service availability for robust container orchestration and load balancing.

Boost .NET API performance with built-in rate limiting & output caching. Protect against abuse & reduce database load efficiently.