How the internet actually works. DNS resolution, reverse proxies, load balancing, TLS handshakes, and CDN caching explained with diagrams and real configurations.
21 articles
Real RTT measurements from 8 Indian cities (Mumbai, Bangalore, Delhi, Chennai, Hyderabad, Kolkata, Pune, Ahmedabad) across BSNL, Jio, Airtel, Tata to 5 CDNs over 7 days. Cloudflare leads p50 from every city; the Singapore detour problem; IPv6 vs IPv4 gaps on Jio.
Macvlan gives containers unique MACs (each looks like a physical machine); IPvlan shares the host MAC. Real use cases (legacy apps, hardware licensing, multi-tenant), gotchas (host can't reach containers, AWS blocks them), and configuration recipes.
A performance and usability comparison of popular web servers including benchmarks, configuration complexity, and real-world usage.
Real RTT measurements from 8 Indian cities to AWS, GCP, Azure regions. ap-south-1 wins for west India + Bangalore; ap-south-2 wins for south + east.
WireGuard is the protocol; Tailscale is the product built on it. Covering architecture, NAT traversal, benchmarks, Headscale, alternatives like NetBird and ZeroTier, use cases, and pricing.
Direct head-to-head comparison of Caddy and Nginx with benchmarks on static file serving, reverse proxy latency, TLS performance, config examples, and production recommendations.
A comprehensive guide to BGP covering autonomous systems, route selection, BGP hijacking, RPKI, anycast routing, and how 75,000 independent networks form a single navigable internet.
CIDR cheat sheet: /24 = 254 usable IPs, /20 = 4,094, /16 = 65,534. Quick reference table, AWS subnet reservation rules, and VPC carving examples.
A practical guide to load balancing algorithms -- round robin, least connections, IP hash, consistent hashing, and power of two choices -- with nginx and HAProxy configurations.
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