1# Network Kit Terms 2<!--Kit: Network Kit--> 3<!--Subsystem: Communication--> 4<!--Owner: @wmyao_mm--> 5<!--Designer: @guo-min_net--> 6<!--Tester: @tongxilin--> 7<!--Adviser: @zhang_yixin13--> 8 9## D 10 11### Domain Name System (DNS) 12 13A system that translates human-readable domain names into machine-recognizable IP addresses, enabling the location and access of network resources. 14 15## H 16 17### Hypertext Transfer Protocol (HTTP) 18 19An application-layer protocol designed for distributed, collaborative, and hypermedia information systems. 20 21### HTTPS 22 23A security-enhanced communication protocol built upon HTTP, leveraging SSL/TLS encryption to ensure data transmission confidentiality, integrity, and identity authentication. 24 25## M 26 27### Multicast DNS (MDNS) 28 29A protocol used to automatically discover and configure devices in a local area network (LAN). 30 31## S 32 33### Secure Socket Layer (SSL) 34 35A network security protocol that provides encryption and identity authentication for communications between clients (for example, browsers) and servers, ensuring the confidentiality, integrity, and reliability of transmitted data. 36 37## T 38 39### Transmission Control Protocol (TCP) 40 41A connection-oriented, reliable byte-stream transport layer protocol that supports reliable data delivery over IP networks. 42 43### Transport Layer Security (TLS) 44 45A protocol that operates at the transport layer, sitting above TCP and below application protocols like HTTP. As the successor to SSL, which was deprecated due to security flaws, TLS ensures secure communication by encrypting application-layer data (such as HTTP requests) and wrapping it into TCP segments for reliable delivery. 46 47## U 48 49### User Datagram Protocol (UDP) 50 51A connectionless, lightweight transport layer protocol designed for real-time data transmission where reliability is secondary to low latency. 52 53## V 54 55### Virtual Private Network (VPN) 56 57A type of dedicated network that is established on public networks to enable encrypted communication. 58