socket programming

[roger911]

So I'm trying to learn some socket programming, and I'm at the point where I need a server to interact with. After googling, I see people renting out VPS services and servers for 5-100$ a month. Is there any way to emulate a server, or a free server that I can use?

[Computergeek01]

The first solution is to use another device on your network. The second one is to use the loopback interface on the PC you're working at.