Server - Client How do I enter as a ?

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Hello Everyone!

I have Server Program and have Clients. I don't Have A server Source. I'm need to send out my new packet. How can I do ?

Please Help me.

To put it illustrated;
http://prntscr.com/4d0e33

Posted 15-Aug-14 9:50am

osmanylmz

Updated 15-Aug-14 10:49am

Afzaal Ahmad Zeeshan

v3

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[no name] 15-Aug-14 15:57pm

Well I am pretty sure that you are not actually from the US and it's pretty obvious that English is not your native language. You might consider going over to google translate and typing your question out in whatever your native language is, translating that to English and then posting the translation here.

ZurdoDev 15-Aug-14 16:32pm

I do not understand where you are stuck.

Sergey Alexandrovich Kryukov 15-Aug-14 16:49pm

You cannot do development not having some appropriate source of information. Each service should come with some API or just documentation on its use. What do you have? What's the problem?
—SA

osmanylmz 15-Aug-14 17:22pm

@Sergey Do you understand Me ? What I mean ?

Sergey Alexandrovich Kryukov 15-Aug-14 17:53pm

Apparently, not quite. You need to be way more clear.
—SA

PIEBALDconsult 15-Aug-14 17:39pm

Are you saying that you need to modify the behavior of server/service but that you don't have the source code?

osmanylmz 15-Aug-14 17:44pm

yes, it is. I Need modify a server in and server out packets.

[no name] 15-Aug-14 19:59pm

Since you do not have the source for the server, you don't.

2 solutions

Solution 4

proxy server is logical. because local proxy server Does it works?

Posted 15-Aug-14 22:48pm

osmanylmz

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Dave Kreskowiak · Accepted Answer · 2014-08-15T16:15:00

Well, if you don't have the source code for the server you're going to have an extremely difficult time doing this, though it is possible to do.

You'd be writing a type of proxy server, referred to as a "man in the middle", that sits between the server and all of it's clients. This proxy would take the data from network packets coming from the server and crafting new ones to replace them and sending those modified packets to the clients. The reverse is also true.

The problem with doing this is that you MUST completely understand every single message going back and forth between the server and clients.

You will mostly likely not find examples or tutorials of this on the web. It's a very advanced topic and there is no easy way to do it. You either completely understand TCP/IP networking and the communication protocols the server is using or that is going to be your project for about a year before you even start this project.