41.5. Managing User Classes
The FTP server categorizes clients into classes based on their source addresses and types of login. Classification can be used in several different places in the WU-FTPD configuration to define settings that apply only to certain clients. It can also be used to block non-anonymous logins (or even all logins) from outside your network. This can be useful if you only want to allow certain trusted hosts to upload data to your server and let anyone on the Internet log in anonymously to download.
Each class has a name, a list of login types, and a list of client addresses, hostnames, or networks. Only clients that match both the login types and the addresses are considered to be in the class. If more than one class is matched, ...
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