Setting up anonymous FTP is simple. All you need to do is install the anonftp RPM package (which you may have already done at install time). Once it is installed, anonymous FTP will be up and running.
There are a few files you might wish to edit to configure your FTP server.
This file defines most of the access control for your FTP server and can be configured to set up logical groups to control access from different sites, limit the number of simultaneous FTP connections, configure transfer logging, and much more. Read the ftpaccess man page for complete details.
The ftphosts file is used to allow or deny access to certain accounts from various hosts. Read the ftphosts man page for details.
This file lists all the users that are not allowed to FTP into your machine. For example, root is listed in /etc/ftpusers by default. That means that you cannot FTP to your machine and log in as root. This is a good security measure, but some administrators prefer to remove root from this file.