In addition to -l and -r for local and remote forwards, respectively, SSH offers -d to create an HTTP proxy on a remote machine.

除了分别用于本地和远程转发的- L和- R之外，SSH还提供- d参数来在远程机器上创建一个HTTP代理。

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The example shown for step 3 (see Listing 3) makes the first-time remote SSH call (ls -d /tmp) to the destination server, thereby caching the key within your server's .ssh/known_hosts file.

步骤3中所示的示例（参见清单 3）发出第一次远程SSH调用（ls-d /tmp）到目标服务器，从而缓存您的服务器的 .ssh/known_hosts文件内的密钥。

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The example shown for step 3 (see Listing 3) makes the first-time remote SSH call (ls -d /tmp) to the destination server, thereby caching the key within your server's .ssh/known_hosts file.

步骤3中所示的示例（参见清单 3）发出第一次远程SSH调用（ls-d /tmp）到目标服务器，从而缓存您的服务器的 .ssh/known_hosts文件内的密钥。

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