People
I am a new developer and this is my first project so i need your help.I have completed the connection part of my chat server now i need to develop it further for which i need help from someone so please help me out.

It would be helpful if you said what you were wanting help/advice with.
So you have the connection part of a chat server, that could mean all you have is a program with main/socket/bind/listen/accept in it.

well man if u can help me i can send you the specificatiosn of the project.Its a linux chat server

I suggest you describe the specific problem you have on the forum rather than sending various specifications around.

The "Internet Relay Chat Protocol" is well documented on the internet, what is the specific issue you want to discuss?

Looking at your previous posts, http://www.unix.com/c-programming-in...r-project.html, I might as well close this thread. But as porter mentioned, I will allow for discussion of the specific issues that you may have. But no direct solutions are allowed.

well now after connection the client sends a registration request to the server and server see whether dis is a unique client or not.now the problem is how to check for uniqueness

Either have client send some passphrase to the server for easier validatian

or validate transparently for the hostname : port number from the request from the client to the server ( provided, request to the server from the client is from the same port always )