#tcp (2)

Concepts (1)

HTTP

The request/response protocol that carries almost every API, page, and download on the modern internet — methods, status codes, headers, caching, and three wire formats (HTTP/1.1, HTTP/2, HTTP/3).

web protocol api rest network tcp quic tls web-researched

Cheat sheets (1)

Networking Stack — OSI/TCP-IP, Sockets, TCP/UDP, MTU, NAT, DNS

How packets actually move: the OSI and TCP/IP layer models, the BSD socket API, TCP vs UDP, the three-way handshake, MTU/MSS, NAT and port translation, basic IP routing, and the full DNS resolution flow.

networking osi tcp-ip sockets tcp udp mtu nat routing dns sysadmin

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