Sardar Mudassar Ali Khan's contributions

Diagnose .NET 9 assembly load failures and NuGet NU1605 errors caused by transitive package dependencies, then align package versions to prevent runtime crashes.

Build JWT and refresh-token authentication in ASP.NET Core using Identity, token rotation, Clean Architecture, and a repository-based persistence layer.

Build a .NET 9 Web API once and promote it through dev, QA, and production on AKS using GitHub Actions, ACR, Kubernetes manifests, approval gates, and NGINX Ingress.

Learn why Node.js can hit V8 heap limits before Kubernetes container memory limits and how to configure NODE_OPTIONS, resource limits, and monitoring to prevent crashes.

A practical guide to 25 .NET techniques for improving application performance, resilience, concurrency, memory use, networking, and architecture.

Learn safe .NET concurrency patterns using SemaphoreSlim, bounded channels, Parallel.ForEachAsync, and BackgroundService to prevent deadlocks, memory pressure, and thread-pool starvation.

A practical guide to building high-performance, resilient .NET applications with efficient memory use, safe concurrency, caching, HTTP resilience, distributed consistency, and observability.

Learn practical .NET performance techniques for reducing allocations, optimizing lookups, caching safely, configuring resilient HTTP clients, and measuring results with BenchmarkDotNet.

Configure Fail2Ban on Ubuntu to detect failed SQL Server logins, ban brute-force clients, enable startup persistence, and verify MSSQL jail status.

Learn how to improve EF Core query performance with no-tracking queries, split queries, and compiled queries for read-heavy and high-throughput workloads.

Configure Prometheus alerting rules for EF Core query traffic, active DbContext counts, and HTTP latency, then register and verify the rules in Prometheus.

Configure structured logging with Serilog and distributed tracing with OpenTelemetry in an ASP.NET Core Web API, including request logging, trace propagation, and queryable log properties.

Learn to integration test ASP.NET Core Web APIs with xUnit and WebApplicationFactory, including dependency injection overrides, in-memory databases, and end-to-end HTTP tests.

Learn to process long-running ASP.NET Core Web API tasks safely with BackgroundService, IHostedService, and a thread-safe System.Threading.Channels queue.

Learn to protect an ASP.NET Core Web API with built-in rate-limiting policies and Redis distributed caching using the cache-aside pattern.

Compare EF Core and Dapper for ASP.NET Core Web APIs, and learn how to combine them in a CQRS-style architecture for maintainable writes and high-throughput reads.

Learn how to implement global exception handling in an ASP.NET Core Web API with IExceptionHandler and RFC 7807 Problem Details responses.