Intercept, monitor and manipulate a TCP connection.
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This will handle multiple incoming connections. Also, found sed works best with -u flag (unbuffered io). Easiest way I've found to get ncat is to install nmap.
1ncat -l -p 1234 --sh-exec "tee -a to.log | nc machine port | tee -a from.log"
What do you think?
Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?
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mkfifo /tmp/fifo ; while :; do cat /tmp/fifo | nc -l -p 80 | tee -a to.log | nc localhost 8000 | tee -a from.log > /tmp/fifo; donemkfifo /tmp/fifo ; while :; do cat /tmp/fifo | nc -l -p 80 | tee -a to.log | nc localhost 8000 | tee -a from.log > /tmp/fifo; done Also, it took me quite a while to find out what was done and how. For example if you want to debug your http-server running on port 8000, you would do the command as I did and then go to http://localhost instead of http://localhost:8000 as you would normally