CODEWITHSUNDEEP
linuxtcp
user192936
user192936

Reputation:

Linux tool to send raw data to a TCP server

I am aware that this is not a direct 'development' question but I need this info to test a development project, so I think someone could've hit similar problem.

I will test a software that runs a TCP server and according to sent commands replies some answers. I will test the software and do not want to write code if it doesn't work well. So I want to send those commands and test drive the server software.

How can I achieve this with a Linux box?

Upvotes: 49

Views: 105292

Answers (3)

luke
luke

Reputation: 14788

netcat or telnet, I have used both in the past to test simple text based protocols. netcat is more flexible.

Upvotes: 54

Brian Agnew
Brian Agnew

Reputation: 272397

Sounds like Expect may be what you want. There are implementations for multiple scripting languages, and you can script and assert the requests/server responses plus appropriate timeouts, error handling etc.

Upvotes: 0

Dummy00001
Dummy00001

Reputation: 17430

From bash with dd:

dd if=/dev/zero bs=9000 count=1000 > /dev/tcp/$target_host/$port

or even with cat:

cat < /dev/urandom > /dev/tcp/$target_host/$port

Upvotes: 70

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