Used on both Internet and Local Area Networks Telnet is a protocol that allows bidirectional text oriented communication through the use of virtual terminal connections and is often used by Administrators to remotely access computers.
Telnet uses configuration files that have the extension .cnf, these files contain information need to create the connection such a servers, user names and passwords.
» Operating System
How to open .cnf files?
Software to open .cnf files
What are .cnf files