Você pode configurar um proxy de meias com o comando ssh com a opção -D .
-D [bind_address:]port
[...] allocating a socket to listen to port on the local side, optionally bound to the specified bind_address.
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. Currently the SOCKS4 and SOCKS5 protocols are supported, and ssh will act as a SOCKS server.
Exemplo:
ssh -D 8080 username@sshd_server
Depois disso, defina a opção de proxy dos navegadores para usar o proxy socks5 127.0.0.1:8080. ( via )