Pair of fabric coverings for the feet, varying in length upward from the ankle to the knee and worn inside shoes or boots. Socks are usually knitted in wool, cotton, or synthetic fibers.

A generic proxy protocol for Internet Protocol (IP) networks.
SOCKS, also known as Authenticated Firewall Transfer (AFT), is a protocol used in proxy servers and firewalls and for virtual private networks (VPNs). SOCKS is implemented as a client/server protocol to allow hosts outside a firewall to access hosts inside the firewall without needing a direct IP connection between the two hosts. Since SOCKS works at the transport layer, its operation is independent of what happens at the application layer, so SOCKS can proxy new applications without having to reconfigure the firewall or install new software.
SOCKS comes in two versions:
. SOCKSv4: Establishes proxy circuits and connection
requests and relays application data between proxied hosts
. SOCKSv5: Extends SOCKSv4 by adding authentication
for greater security
SOCKS is an Internet standard protocol defined in
RFCs 1928, 1929, and 1961.