The compression algorithm is the same used by gzip(1), and the ``level'' can be controlled by the CompressionLevel option for protocol version 1. C Requests compression of all data (including stdin, stdout, stderr, and data for forwarded X11, TCP and UNIX-domain connections). The bind_address of ``localhost'' indicates that the listening port be bound for local use only, while an empty address or `*' indicates that the port should be available from all interfaces. However, an explicit bind_address may be used to bind the connection to a specific address. By default, the local port is bound in accordance with the GatewayPorts setting. Only the superuser can forward privileged ports. IPv6 addresses can be specified by enclosing the address in square brackets. Dynamic port forwardings can also be specified in the configuration file. Currently the SOCKS4 and SOCKS5 protocols are supported, and ssh will act as a SOCKS server. Whenever a connection is made to this port, the connection is forwarded over the secure channel, and the application protocol is then used to determine where to connect to from the remote machine. This works by allocating a socket to listen to port on the local side, optionally bound to the specified bind_address. D port Specifies a local ''dynamic'' application-level port forwarding. Here are the ssh client's options we are using: We suppose now that you are in a public place with your mac or linux laptop, you know the ip of your home and you need to browse the web using your home's internet connection.
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