socks5 support

[Kevin Steves]

On Sat, 11 May 2002, Michael Robinton wrote:
:> This is best handled by a ProxyCommand helper.
:>
:ProxyCommand helper does not allow you to bridge multiple socks
:servers since it knows nothing about the next server.
:
:i.e. to go from behind firewall A over the internet to B then behind
:firewall B transparently.

Wouldn't that depend on how full-featured the proxycommand program is?
Below is what Sun did for Solaris 9, which I think is pretty basic.
The complete man page can be found at docs.sun.com.

Also, there are 2 SOCKS discussions going on I think: one for client
support to connect thru SOCKS servers and another to have SOCKS5
server support for dynamic forwards.

NAME

ssh-socks5-proxy-connect - Secure Shell proxy for SOCKS5

SYNOPSIS

/usr/lib/ssh/ssh-socks5-proxy-connect [-h socks5_proxy_host] [-p
socks5_proxy_port] connect_host connect_port

DESCRIPTION

A proxy command for ssh(1) that uses SOCKS5 (RFC 1928). Typical use is
where connections external to a network are only allowed via a socks
gateway server.