systemd: Service Management in Linux
systemd has become the de facto init system and service manager across major Linux distributions. Whether you’re running Ubuntu, Fedora, Debian, or RHEL, you’re almost certainly using systemd to…
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System Design: Service Discovery Patterns
Hardcoded endpoints are the first thing that breaks when you move from a monolith to distributed services. That http://localhost:8080 or even http://user-service.internal:8080 in your…
System Design: Service Mesh Architecture
A service mesh is a dedicated infrastructure layer that handles service-to-service communication in a microservices architecture. Instead of embedding networking logic—retries, timeouts, encryption,…
Read more →Service Mesh: Istio and Linkerd
Service meshes emerged to solve a fundamental problem: as microservices architectures scale, managing service-to-service communication becomes exponentially complex. Without a service mesh, each…
Read more →Service Registry: Dynamic Service Location
Hardcoded service URLs work until they don’t. The moment you scale beyond a single instance, deploy to containers, or implement any form of auto-scaling, static configuration becomes a liability….
Read more →JavaScript Service Workers: Offline-First Applications
Service workers are JavaScript files that run in the background, separate from your web page, acting as a programmable proxy between your application and the network. They’re the backbone of…
Read more →Frontend Caching: Service Workers and Cache API
Frontend caching is the difference between a sluggish web app that breaks offline and a fast, resilient experience that works anywhere. Traditional browser caching relies on HTTP headers and gives…
Read more →Design a Ride-Sharing Service: Location-Based Matching
Before diving into architecture, let’s establish what we’re building. A ride-sharing service needs to match riders with nearby drivers in real-time, track locations continuously, and manage the full…
Read more →Design a Notification Service: Push, Email, SMS
A notification service is the backbone of user communication in modern applications. It’s responsible for delivering the right message, through the right channel, at the right time. Get it wrong, and…
Read more →Design a Geolocation Service: Proximity Search
Proximity search answers a deceptively simple question: ‘What’s near me?’ When you open a ride-sharing app, it finds drivers within 5 minutes. When you search for restaurants, it shows options within…
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