http://pa8mm.net/ 2026-07-12T12:28:16+00:00 http://pa8mm.net/ http://pa8mm.net/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2026-07-03T13:53:07+00:00 Anonymous (anonymous@undisclosed.example.com) http://pa8mm.net/doku.php?id=protocols:dns&rev=1783086787&do=diff DNS There are three classes of DNS servers: * Root DNS servers * There are more than 2000 root servers world wide. They are copies of 13 different root servers * Top Level Domain DNS servers * Authoritative DNS servers Finding authoritative text/html 2026-07-01T14:08:01+00:00 Anonymous (anonymous@undisclosed.example.com) http://pa8mm.net/doku.php?id=protocols:http&rev=1782914881&do=diff HTTP Intro HTTP can run in two modes: * Non-Persistent - each response/request is sent over separate TCP connection * Persistent - re-using same TCP connection for all request/responses There are two HTTP message types: * Request * Response text/html 2026-03-06T13:17:23+00:00 Anonymous (anonymous@undisclosed.example.com) http://pa8mm.net/doku.php?id=protocols:tcp&rev=1772803043&do=diff TCP FLOW CONTROL Flow control - is a mechanism to prevent the server from overwhelming the receiver with data it may not be able to process. This is by advertising rwnd (receive window) by each side. rwnd - the size of available buffer to receive data.