Socat

socat - Multipurpose relay (SOcket CAT)

Abstract

what: "netcat++" (extended design, new implementation)
OS: AIX, BSD, HP-UX, Linux, Solaris e.a. (UNIX)
lic: GPL2
inst: tar x...; ./configure; make; make install
doc: README; socat.html, socat.1; xio.help
ui: command line
exa: socat TCP6-LISTEN:8080,reuseaddr,fork PROXY:proxy:www.domain.com:80
keyw: tcp, udp, ipv6, raw ip, unix-socket, pty, pipe, listen, socks4, socks4a, proxy-connect, ssl-client, filedescriptor, readline, stdio, exec, system, file, open, tail -f, termios, setsockopt, chroot, fork, perm, owner, trace, dump, dgram, ext3, resolver, datagram, multicast, broadcast, interface, socket, sctp, generic, ioctl