Can unity be a server?

Hi all, i am newer to unity.
Now we want to develop a multiplayer networking game using unity.But there is a question that ,we didn't know how deal with networking with unity.So can anybody tell me how to do with it?Thanks!

 

Hi, welcome to the forum!

Check out the Multiplayer Networking section of the manual to find out how a game instance can act as a server. Unity can also be run from the command line, and has options that make it suitable for use as a "pure" server with no interaction. See the command line arguments page for further details.

 

Thanks very much for your attentions.
I have read the manuals about the networking closely.
But I can see nothing about raw calls about socket like send or recv and so on. So I am doubt that does unity can use raw socket or only those interfaces which have be wrapped well?