FTP Logs in Linux/Unix

Hi,

I need to get a hostory of users who FTP into a server. How can I do it in Linux/Unix? Is there a command for this? I do not want to use netstat -a as it gives only the list of users who have a session currently on the server. Can this be done with the "last" command?

Please do let me know if there is an alternateway.

Thanks in advance for the help