This is version 4.3 of SOCKS, a package that allows Unix hosts behind a firewall to gain full access to the internet without requiring direct IP reachability. It does require a SOCKS server program being run on a hosts that can communicate directly to hosts behind the firewall as well as hosts on the Internet at large. It is based on the original SOCKS written by David Koblas .

This package includes SOCKSified client programs of finger, ftp, telnet, and whois. A few other SOCKSified clients may be found on ftp.nec.com, in directory /pub/security/socks.cstc.