- Secure Shell proxy for SOCKS5
/usr/lib/ssh/ssh-socks5-proxy-connect [-h socks5_proxy_host] [-p socks5_proxy_port] connect_host connect_port
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.
This proxy command does not provide any of the SOCKS5 authentication mechanisms defined in RFC 1928. Only anonymous connections are possible.
The following options are supported:
Specifies the proxy web server through which to connect. Overrides the SOCKS5_SERVER environment variable.
Specifies the port on which the proxy web server runs. If not specified, port 80 is assumed. Overrides the SOCKS5_PORT environment variable.
The following operands are supported:
The host name or IP address (IPv4 or IPv6) of the proxy.
The numeric port number to connect to on socks5_proxy_host.
The name of the remote host to which the socks gateway is to connect you.
The numeric port number of the socks gateway to connect you to on connect_host.
The recommended way to use a proxy connection command is to configure the ProxyCommand in ssh_config(4) (see Example 1 and Example 2). Example 3 shows how the proxy command can be specified on the command line when running ssh(1).
Example 1 Setting the proxy from the environment
The following example uses ssh-socks5-proxy-connect in ssh_config(4) when the proxy is set from the environment:
Host playtime.foo.com ProxyCommand /usr/lib/ssh/ssh-socks5-proxy-connect \ playtime.foo.com 22
Example 2 Overriding proxy environment variables
The following example uses ssh-socks5-proxy-connect in ssh_config(4) to override (or if not set) proxy environment variables:
Host playtime.foo.com ProxyCommand /usr/lib/ssh/ssh-socks5-proxy-connect -h socks-gw \ -p 1080 playtime.foo.com 22
Example 3 Using the command line
The following example uses ssh-socks5-proxy-connect from the ssh(1) command line:
example$ ssh -o'ProxyCommand=/usr/lib/ssh/ssh-socks5-proxy-connect \ -h socks-gw -p 1080 playtime.foo.com 22' playtime.foo.com
Takes socks5_proxy_host operand to specify the default proxy host.
Takes socks5_proxy_port operand to specify the default proxy port.
The following exit values are returned:
An error occurred.
See attributes(5) for descriptions of the following attributes: