SOCKS

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Internet Protocol Suite
Application Layer
BGP · DHCP · DNS · FTP · HTTP · IMAP · IRC · LDAP · MGCP · NNTP · NTP · POP · RIP · RPC · RTP · SIP · SMTP · SNMP · SOCKS · SSH · Telnet · XMPP · (more)
Transport Layer
TCP · TLS/SSL · UDP · DCCP · SCTP · RSVP · ECN · (more)
Internet Layer
IP (IPv4, IPv6) · ICMP · ICMPv6 · IGMP · IPsec · (more)
Link Layer
ARP/InARP · NDP · OSPF · Tunnels (L2TP) · PPP · Media Access Control (Ethernet, DSL, ISDN, FDDI) · (more)
v · d · e

SOCKS is an Internet protocol that facilitates the routing of network packets between client–server applications via a proxy server. SOCKS performs at Layer 5 of the OSI model—the session layer (an intermediate layer between the presentation layer and the transport layer). Port 1080 is the registered port designated for the SOCKS server.

The SOCKS5 protocol was originally a security protocol that made firewalls and other security products easier to administer. It was approved by the IETF in 1996. The protocol was developed in collaboration with Aventail Corporation, which markets the technology outside of Asia.

1 History
2 Comparison
- 2.1 SOCKS
- 2.2 HTTP
3 Protocol
- 3.1 SOCKS 4
- 3.2 SOCKS 4a
- 3.3 SOCKS 5
4 Compatibility
5 Software
- 5.1 SOCKS-Servers
- 5.2 SOCKS-Clients - SOCKS-Wrappers
6 References
7 External links

History

The protocol was originally developed by David Koblas, a system administrator of MIPS Computer Systems. After MIPS was taken over by Silicon Graphics in 1992, Koblas presented a paper on SOCKS at that year's Usenix Security Symposium and SOCKS became publicly available. The protocol was extended to version 4 by Ying-Da Lee of NEC.

The SOCKS reference architecture and client are owned by Permeo Technologies a spin-off from NEC. (Blue Coat Systems bought out Permeo Technologies).

Comparison

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