Telnet, the Forgotten Internet Tool

摘要

Before the hierarchical menus of gophers and the graphical hypertext realm of the World Wide Web, telnet was the primary way to connect to Internet information sources. Telnet, the plain ASCII terminal emulation protocol for logging in to remote systems, made library catalogs, online services, bulletin boards, and databases accessible to the Internet population. In those days, basic Internet training covered telnet, FTP, email, and news reading. While each function could be invoked from the UNIX prompt, each one used a different client program and each had its own unique problems.