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Socks Server. Ting-Li Wang. Outline. What is Socks Server Socks Model Setup a Socks Server Socks Client. What is Socks Server. Socks : an IETF approved standard. (RFC 1928) Socks : includes the Socks Server and the Socks client. What is Socks Server.
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Socks Server Ting-Li Wang
Outline • What is Socks Server • Socks Model • Setup a Socks Server • Socks Client
What is Socks Server • Socks : an IETF approved standard. (RFC 1928) • Socks : includes the Socks Server and the Socks client
What is Socks Server • Socks : communicate two hosts, without requiring direct IP-reachability
Socks Model • Socksv4 : • makes connection requests • sets up proxy circuits • and relays application data.
Socks Model • Socksv5 : • makes connection requests • sets up proxy circuits • and relays application data • authentication
Setup a Socks Server • permit auth cmd src-host dest-host src-port dest-port [user-list] • deny auth cmd src-host dest-host src-port dest-port [user-list]
Setup a Socks Server • [cmd] • c : connect • b : bind • etc • deny - - - - - - • permit - - 140.113. - - - • permit - - 210.58.13.72 140.113. - 80
Socks Client • Unix : • rtelnet, rftp, rfinger, etc • runsocks • Windos : • SocksCap32