27 docs tagged with "networking"

OAuth 2.0 flows, JWT structure and validation, API keys, mTLS, OIDC, token introspection, and Spring Security integration.

How DNS works end-to-end — resolution chain, record types, caching, TTL, DNSSEC, and common DNS patterns.

Complete guide to Docker networking — veth pairs, docker0 bridge mechanics, iptables SNAT/DNAT port forwarding, user-defined bridge DNS resolution, and network drivers.

Complete guide to Envoy Proxy, its architecture, dynamic configuration via xDS API, static setups, and system-design benefits.

An exhaustive, 1000-line deep dive into Linux for DevOps, featuring advanced commands (awk, sed, find), network tracing, system tuning, and bash scripting.

A complete guide to HTTP — from beginner fundamentals to senior-level protocol internals. Covers methods, status codes, headers, caching, TLS, CORS, and HTTP/1.1 vs HTTP/2 vs HTTP/3 evolution.

IPv4 and IPv6 addressing, subnetting, CIDR notation, NAT, routing protocols, and how packets find their way across the internet.

Comprehensive guide to Kubernetes networking concepts, including Container Network Interface (CNI), Service Types, Kube-proxy, and Ingress.

Senior deep dive into EUI-48 MAC architecture, ARP protocol state machine, CAM table forwarding, Gratuitous ARP failover, ARP spoofing defenses, and Cloud VPC VXLAN virtualization.

Comprehensive reference for all essential network and application protocols — TCP/IP, UDP, DNS, DHCP, HTTP/HTTPS, QUIC, WebSocket, SSH, FTP/SFTP, SMTP/IMAP, TLS 1.3, BGP, MQTT, and AMQP.

Latency, bandwidth, throughput, connection pooling, keep-alive, HTTP/2 multiplexing, QUIC, compression, and practical tuning techniques.

TLS deep dive, common network attacks, DDoS mitigation, zero trust networking, certificate management, and security best practices.

Practical guide to tcpdump, Wireshark, netstat, ss, nmap, curl, openssl, dig, traceroute and how to diagnose every layer of the network stack.

Network stack internals, socket programming, TCP deep dive, IPC mechanisms, and high-performance networking with Java NIO and Netty patterns.

Comprehensive compilation of the most common networking interview questions across all topics, organized by category and difficulty.

A comprehensive reference covering OSI/TCP-IP models, TCP/UDP, HTTP/HTTPS, DNS, CDN, security, sockets, REST, gRPC, WebSockets, QUIC, and more — with interview questions.

Comprehensive deep dive into Nginx internals — Master-Worker architecture, epoll/kqueue event loop, thread pools, connection lifecycle, upstream proxying, load balancing, SSL/TLS termination, HTTP/2, caching, rate limiting, and production tuning.

The OSI 7-layer model and TCP/IP 4-layer model — each layer's role, protocols, and how data encapsulation works end-to-end.

Deep dive into network middleboxes, forward and reverse proxies, Linux Netfilter hooks, conntrack state machine, WireGuard vs IPsec VPN encapsulation, and MSS clamping.

QUIC protocol internals, HTTP/3, connection migration, 0-RTT, multiplexing without HOL blocking, and comparison with TCP+TLS.

A comprehensive guide comparing reverse proxies, load balancers, and API gateways — their differences, internal mechanics, architectural roles, alternatives, and production deep dives for senior engineers.

Kubernetes networking guide — Service types (ClusterIP, NodePort, LoadBalancer, ExternalName), Ingress, DNS, NetworkPolicy, and how traffic flows from the internet to a Pod.

Blocking vs non-blocking I/O, Java NIO, epoll, the C10K problem, Netty, and how event-driven servers handle massive concurrency.

TCP's three-way handshake, flow control, congestion control, connection termination, and UDP — when to use each and how they work.

A comprehensive guide covering real technical interview questions and answers from a TCS Ninja/NQT interview for a fresh engineering graduate. Covers Core Java, OOPs, Data Structures, HTTP, OS, and Networking.

Senior deep dive into Tor onion routing, 3-hop circuit telescoping, cell peeling cryptography, V3 hidden services, traffic correlation attacks, and Tor vs VPN vs Proxy comparison.

VPC essentials for DVA-C02. Subnets, route tables, security groups vs NACLs, NAT Gateway, VPC Endpoints (Gateway vs Interface), bastion hosts, and common developer scenarios like Lambda-in-VPC and private RDS access.