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I am using this command

socat -lm -d -d TCP4-LISTEN:5555,reuseaddr,fork EXEC:/bin/myscript,chroot=/root/,su=root,pty,stderr

to start a server but when i send the i connect to it through netcat and send some input, it sends back input+output . Why is that ? I don't want my input back .

Terminal 1:

socat -lm -d -d TCP4-LISTEN:5555,reuseaddr,fork EXEC:/bin/myscript,chroot=/root/,su=root,pty,stderr

Terminal 2:

root@vm:echo "AAAAAA" | nc localhost 5555
AAAAAA[i don't want this to be coming back to me]
output(AAAAAA)

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  • Can you maybe elaborate a little bit more, like paste netcat command you are using, and show what you mean by "it sends back input+output"?
    – Jakov Sosic
    Commented Jun 29, 2014 at 5:45
  • Done! tell me if u need anything extra.
    – user2001987
    Commented Jun 29, 2014 at 7:42
  • 1
    I believe you seeing your input is just a result of you specifying the pty option. How is this used, do you need the pty option?
    – Håkan Lindqvist
    Commented Jun 29, 2014 at 10:57
  • @HåkanLindqvist - Please can you create answer based on your comment ?
    – Iwan Aucamp
    Commented Oct 2, 2014 at 10:00
  • @IwanAucamp Created an answer out of my previous comment.
    – Håkan Lindqvist
    Commented Oct 12, 2014 at 9:50

1 Answer 1

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2

The input being echoed back to the client is a result of using the pty option.

If there is no requirement for having pty the easiest solution would be to simply drop that from the command line.

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