What types of client-server or server-server protocols exist on the Internet?
Internet email is typically used for two party messaging. The FTP, gopher, and HTTP protocols allow many users, possibly anonymous, to retrieve data from a central source. For example, corporate catalogs can be restricted by potential customers. a) File Transfer Protocol (FTP) Companies with existing connectivity to the Internet may use FTP to transfer files to one-another or to their VAN. This solution employs the same TCP/IP used for SMTP. Furthermore, Internet documents such as EDI in MIME Work in Progress are available via FTP on the FTP server “ds.internic.net.” b) gopher service protocol. Gopher service is a way of organizing selected documents and files on an Internet server in a simple tree menu, so that users on other Internet computers can find them easily. Most gopher menus are also linked to other gopher menus elsewhere, so that users can easily jump from one Internet server to another. There are thousands of gopher servers in operation worldwide. c) The Hypertext Transfer
