Let's say you are using a Linux workstation and you fire up ngnix on it to host some web site for testing. You then ssh into a remote server and type "curl htt

Let's say you are using a Linux workstation and you fire up ngnix on it to host some web site for testing. You then ssh into a remote server and type "curl https://your-workstation/some-name-here https://your-workstation/some-name-here". In this case, your local machine is the server and curl is the client. This is exactly the same as in the X server case. Your server is running on your machine, and the client is running on the remote machine (which happens to be a server).