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I want to send my command to destination server.

I am using hping3. And;

hping3 -p 9999(running daemon and commands executing on this server) -S

I want to send my command. How to?

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Hping3 doesn't work on layers above layer 4. If your daemon digs through packets, then you need to use -E to fill the TCP data. (You then use -u to end the communication.) But, I'm not sure you can use hping3 to make a connection to a service on a port in the way you describe.

hping3 man page

Connecting Alternatives

It almost looks like you want to use netcat, or sbd, which can send commands.

nc 9999
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