.CNF File Extension

Configuration file used by MySQL, an open source relational database program; contains settings such as the default character encoding, timeouts, and cache and buffer settings; often modified to fine-tune performance depending on the use of the database.

The MySQL configuration file has the name my.cnf. It is most often located in the /etc/ directory. The file is saved in a plain text format.

Stores information used to make a telnet connection, such as the server name, username, and password; serves as a shortcut for common telnet sessions.