FTP Servers

FTP uses a client/server model. As a client, FTP accesses a server, and as a server, FTP provides access to files or storage. Just about every computer platform available has software written to enable a computer to act as an FTP server, but Ubuntu provides the average user the ability to do this without paying hefty licensing fees and without regard for client usage limitations.

There are two types of FTP servers and access: anonymous and standard. A standard FTP server requires an account name and password from anyone trying to access the server. Anonymous servers allow anyone to connect to the server to retrieve files. Anonymous servers provide the most flexibility, but they can also present a security risk. Fortunately, as you will read in this chapter, Ubuntu is set up to use proper file and directory permissions and commonsense default configuration, such as disallowing root to perform an FTP login.

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