How to send three pipes of data over ssh?

I have a bash script on a remote host that produces a large amount of data on fd开发者_如何转开发=3 as well as some possibly interesting data on stdout and stderr. I want to:

1. Log stdout and stderr to a file on my local machine.
2. Write the data on fd=3 to stdout on my local machine.

Here's how it could be done if my big script were local:

exec 3> >(cat)
./big_script.sh -o /dev/fd/3 2>&1 >big_script.log
exec 3>&-

However, I want to run big_script.sh on a remote machine and have all three pipes (fd=1, fd=2, and fd=3) come out of the ssh program as separate. What is the best way to that?

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nc (netcat) and tunnels ? you can make kinda log radio on your net this way!

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SSH opens just a single tty, so you just get a single stream that has all the data. You cannot tell apart what went to what the other side seen as stdout and stderr.

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You could log to files on the remote host, and then ssh remote tail -f each of the log files from your local machine.