22 docs tagged with "networking"

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

SSH, SMTP, FTP, MQTT, AMQP, LDAP, NTP and other essential application-layer protocols — how they work and when to use them.

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

Complete guide to Docker networking — bridge, host, overlay, and none drivers, container DNS resolution, port publishing, creating custom networks, and connecting containers across Compose services.

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.

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.

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

Forward and reverse proxies, NAT traversal, stateful firewalls, iptables, VPNs, and how traffic flows through network boundaries.

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.

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.