If you have the Basic Account or higher, you will see an Anonymous FTP button in your Control Panel. Just click that button and Anonymous FTP will be setup on your account. 

After anonymous FTP is setup, it will create a directory called domainname-anonftp in the user's home directory. This directory will by default contain the following directories:

/bin
/dev
/etc
/lib
/pub

The only directory that is used is the "pub" directory. This is where the client should put files that they want to have users anonymously download. Users can access this directory via a browser by going to:

ftp://domainname.com/pub

Note, we do not allow clients the ability to allow users to both upload and download to the same directory. We do this for security reasons. The client is responsible for moving files from the incoming directory to the pub directory if they wish for uploaded files also to be downloaded.

The incoming directory would be:

ftp://domainname.com/incoming

This directory is writable from the web but NOT readable. No one coming in from the web (or from an FTP program logging in as "anonymous") can see what files are stored here.

This can be useful for resellers who want to allow their clients to update their pages but don't want to give them full FTP access. The clients would upload to incoming and the reseller would move the files into domainname-www.