• OpenSSH is a FREE version
    of the SSH protocol suite of network connectivity tools that
    increasing numbers of people on the Internet are coming to rely on.
    Many users of telnet, rlogin, ftp, and other such programs might
    not realize that their password is transmitted across the Internet
    unencrypted, but it is. OpenSSH encrypts all traffic (including
    passwords) to effectively eliminate eavesdropping, connection
    hijacking, and other network-level attacks. Additionally, OpenSSH
    provides a myriad of secure tunneling capabilities, as well as a
    variety of authentication methods.
  • OpenSSH for
    is a free package that installs a minimal OpenSSH
    server and client utilities in the Cygwin package without needing
    the full Cygwin installation.
  • ProxyTunnel
    is a program that connects stdin and stdout to a server somewhere
    on the network, through a standard HTTPS proxy. It is mostly used
    to tunnel SSH sessions through HTTP(S) proxies.
  • SSH
    Proxy Command — connect.c
    is the simple relaying command to
    make network connection via SOCKS and https proxy. It is mainly
    intended to be used as proxy command of OpenSSH.