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I tried to make server client model as below

on one shell
nc -l -p 8080 this works as a server and on another nc 127.0.0.1 8080 and this works as a client

all of this is fine ... the problem that if I closed the client the server closes also .. how can I keep server working after terminating client ??

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netcat has a -k option that does what the OP wanted a year ago:

From the man pages:

-k      Forces nc to stay listening for another connection after its 
        current connection is completed. It is an error to use this option with‐
        out the -l option.

So this should work:

nc -lk -p 8080
0

Use a loop:

while :; do
    netcat -l -p 8080 
done
  • thnx alot it works ^____________^ – khaled salah Oct 20 '14 at 20:33

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