Tag: #networking
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 77 posts
Game Development Complete Guide 2025: Unity vs Unreal vs Godot, ECS, Multiplayer, Optimization
Everything about game development! Unity DOTS/ECS, Unreal Engine 5 (Lumen/Nanite), Godot 4, game loops, physics engines, multiplayer (Netcode/Mirror), performance optimization (draw calls/batching), mobile vs console vs
2026-04-15 · 12 min read #game-development#unity#unreal-engine#godot#ecsDNS Deep Dive — Resolution, Caching, DNSSEC, DoH/DoT, Anycast, and 1.1.1.1 Internals (2025)
Trillions of times per day, yet most engineers understand DNS only superficially. This guide dissects DNS from first principles: hierarchical namespace, recursive/iterative resolution, caching and TTLs, record types (A/A
2026-04-15 · 12 min read #dns#networking#dnssec#doh#anycastCDN Complete Guide — Cache, Edge Compute, Origin Shield, and HTTP Caching Headers (2025)
Everything about CDNs — the history of edge caching since Akamai in 1998, the routing trinity of Anycast plus DNS plus GSLB, the physical anatomy of PoPs and edge servers, Cache Key design and Vary header pitfalls, HTTP
2026-04-15 · 15 min read #cdn#caching#edge-compute#cloudflare#fastlyBGP Internet Routing Deep Dive 2025: AS, Peering, Path Selection, RPKI, Anycast — How the Internet Really Works
How does the internet appear as "one"? A complete walkthrough of BGP, Autonomous Systems, Peering vs Transit, Path Selection, RPKI, and route hijacking defense — the routing machinery running behind the scenes.
2026-04-15 · 14 min read #bgp#internet-routing#as#peering#rpkiCDN and Edge Computing Deep Dive — Anycast, Cache Invalidation, DDoS Defense, Lambda@Edge vs Workers vs Compute
From Akamai in 1998 to 2025 edge computing. The magic of Anycast, cache tier design, the philosophy of cache invalidation, the three-layer DDoS defense, and an architecture comparison of Lambda@Edge vs Cloudflare Workers
2026-04-15 · 14 min read #cdn#edge-computing#cloudflare#akamai#fastlyTCP/IP & Network Programming Deep Dive 2025: Sockets, HTTP/3, QUIC, DNS, TLS 1.3
Network programming deep dive! TCP 3-way/4-way handshake, congestion control (Cubic/BBR), socket programming (epoll/kqueue/iouring), HTTP/1.1 vs HTTP/2 vs HTTP/3 (QUIC), DNS resolution, TLS 1.3 handshake, network debuggi
2026-04-14 · 20 min read #tcp-ip#networking#socket#http3#quicKubernetes Networking Deep Dive Guide 2025: CNI, Service, Ingress, DNS, Network Policy
Everything about K8s networking! Pod networking model, CNI plugins (Calico/Cilium/Flannel), Service (ClusterIP/NodePort/LoadBalancer), Ingress vs Gateway API, CoreDNS, Network Policy, eBPF-based networking, and traffic f
2026-04-14 · 24 min read #kubernetes#networking#cni#service#ingresseBPF Complete Guide 2025: Kernel Programming Revolution for Observability, Networking, Security
Everything about eBPF! Safe Linux kernel programming, BCC vs libbpf vs bpftrace, Cilium (networking), Falco (security), Pixie (observability), Tetragon, CO-RE, real-world tracing, performance optimization, production cas
2026-04-14 · 11 min read #ebpf#kernel#observability#networking#securityThe Complete Guide to Networking & Linux Internals — TCP/IP, DNS, iptables, systemd
TCP/IP 4-layer model, DNS resolution, HTTP/HTTPS, Linux network stack, iptables/nftables, systemd, and process management — essential knowledge for infrastructure engineers.
2026-04-12 · 18 min read #networking#linux#tcp-ip#dns#iptablesDNS Complete Guide: Name Servers, DDNS, nslookup — From Domain Registration to Troubleshooting
Everything about DNS in one post! How name servers work, practical domain registration and transfer guide, running home servers with DDNS, complete nslookup/dig usage, all DNS record types explained, DNS security (DNSSEC
2026-03-23 · 32 min read #dns#nameserver#ddns#nslookup#digNetworking Fundamentals Every Developer Must Know: TCP/IP, HTTP, DNS, TLS to gRPC and WebSocket
A comprehensive guide to networking fundamentals every developer must know. From the TCP/IP 4-layer model, HTTP/1.1 vs 2 vs 3, DNS resolution, TLS handshakes, gRPC, WebSocket, CDN, to load balancers — a practical guide y
2026-03-23 · 27 min read #networking#tcp-ip#http#dns#tlsCilium Network Policy Engine: L3/L4/L7 Filtering Implementation
Analysis of the Cilium network policy engine covering policy repository, Identity-based enforcement, L3/L4 eBPF enforcement, L7 Envoy proxy, FQDN policies, audit mode, and endpoint regeneration.
2026-03-20 · 9 min read #cilium#ebpf#networking#open-source-internalsCilium Hubble Observability Platform Internal Analysis
Internal analysis of the Cilium Hubble observability platform covering architecture, Relay, UI, L3/L4/L7 flows, Prometheus metrics, CLI, gRPC API, and performance tuning.
2026-03-20 · 9 min read #cilium#ebpf#networking#open-source-internalsCilium ClusterMesh: Multi-Cluster Networking Internal Implementation
Analysis of Cilium ClusterMesh internals covering etcd architecture, global services, cross-cluster policies, Identity synchronization, KVStoreMesh, and external workloads.
2026-03-20 · 7 min read #cilium#ebpf#networking#open-source-internalsCilium Architecture Internals: The Core of eBPF-Based Networking
Deep analysis of Cilium internals including the Cilium Agent, Operator, eBPF datapath, BPF maps, Identity allocation, and endpoint lifecycle.
2026-03-20 · 10 min read #cilium#ebpf#networking#open-source-internalsCilium eBPF Datapath Deep Dive: Packet Processing Pipeline
Deep analysis of the Cilium eBPF datapath covering packet flow, BPF program chaining, connection tracking, NAT engine, DSR mode, and socket-level load balancing.
2026-03-20 · 11 min read #cilium#ebpf#networking#open-source-internalsHow Multus and Secondary Networks Connect in KubeVirt
Explains how KubeVirt connects secondary networks to VMIs using NetworkAttachmentDefinition, Multus annotations, and interface status updates.
2026-03-20 · 5 min read #architecture#kubevirt#multus#cni#networkingKubeVirt Network 2: Comparing bridge, masquerade, passt, and SR-IOV Bindings
Explains how KubeVirt's main network bindings -- bridge, masquerade, passt, and SR-IOV -- each configure guest NICs, and how they differ in performance, connectivity, and migration characteristics.
2026-03-20 · 5 min read #architecture#kubevirt#networking#multus#sriovKubeVirt Network 1: How Pod Networks Become VM Networks
Explains how KubeVirt connects CNI networks attached to Pods to guest NICs through bridge, TAP, DHCP, and NAT layers, and the IP assignment model.
2026-03-20 · 6 min read #architecture#kubevirt#kubernetes#cni#networkingLive Migration 3: Why Migration Proxy, Ports, TLS, and Sockets Are Needed
Explains why KubeVirt places a migration proxy between source and target launchers in live migration, and how it combines ports, Unix sockets, and TLS paths.
2026-03-20 · 5 min read #architecture#kubevirt#live-migration#networking#tls