A proxy command for ssh(1) that uses HTTP CONNECT. Typical use is where connections external to a network are only allowed via a proxy web server.
The following options are supported:
Specifies the proxy web server through which to connect. Overrides the HTTPPROXY and http_proxy environment variables if they are set.
Specifies the port on which the proxy web server runs. If not specified, port 80 is assumed. Overrides the HTTPPROXYPORT and http_proxy environment variables if they are set.
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 http_proxy_host.
The name of the remote host to which the proxy web server is to connect you.
The numeric port number of the proxy web server to connect you to on http_proxy_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).
The following example uses ssh-http-proxy-connect in ssh_config(4) when the proxy is set from the environment:
Host playtime.foo.com ProxyCommand /usr/lib/ssh/ssh-http-proxy-connect \ playtime.foo.com 22
The following example uses ssh-http-proxy-connect in ssh_config(4) to override (or if not set) proxy environment variables:
Host playtime.foo.com ProxyCommand /usr/lib/ssh/ssh-http-proxy-connect -h webcache \ -p 8080 playtime.foo.com 22
The following example uses ssh-http-proxy-connect from the ssh(1) command line:
example$ ssh -o'ProxyCommand="/usr/lib/ssh/ssh-http-proxy-connect \ -h webcache -p 8080 playtime.foo.com 22"' playtime.foo.com
Takes the http_proxy_host operand to specify the default proxy host. Overrides http_proxy if both are set.
Takes the http_proxy_port operand to specify the default proxy port. Ignored if HTTPPROXY is not set.
URL format for specifying proxy host and port.
See attributes(5) for descriptions of the following attributes:
|ATTRIBUTE TYPE||ATTRIBUTE VALUE|