Serv-U

Serv-U: Very Popular FTP Server

Serv-U is an easy-to-use and superior FTP server created by Rob Beckers. All FTP servers use the FTP protocol to share files across the web. This server complies with all the latest FTP standards and offers many features you do not find with other FTP servers. 

Features:
- Open architecture to extend, monitor, and change the server behavior with external DLLs.
- Control directory & file rights
- Reject or permit IP addresses
- Track user actions in real-time
- Log all commands from users
- Windows User NT-SAM/Active Directory
- ODBC Database Support making it easy to import large databases
- XCRC Support
- Asymmetric Bandwidth Throttling allows you to specify bandwidth
- User Level SSL Control, which allows you the power to add an SSL requirement for certain users
- Speed and performance enhancements

The trial period for the program is 30 days. After your 30-day trial the software will only allow one domain with two concurrent connections, only five user accounts, no links or directory mapping, no quotas, UL/DL ratios or remote administration.