remote forward machine

基本解释

This section describes the steps needed to configure SSH client (PuTTY, in this example) so that it can forward the traffic of localhost to the destined port on remote machine.
本节描述配置 SSH 客户机（本例中为 PuTTY）的步骤，使之可以将本地主机的通信量转发到远程机器的目标端口。
When establishing an inbound tunnel—formally called a remote forward—the roles of proxyhost and targethost are reversed: The target is your local machine, and the proxy is the remote machine.
建立一条入站通道 — 以前称为远程转发 — 时，proxyhost 和 targethost 的角色将被反转：目标是您的本地机器，代理是远程机器。