Java FTP Proxy Server acts as an application-level FTP proxy server. It allows computers inside a firewall to connect to computers outside a firewall, and vice versa. It is also capable of acting as a transparent proxy for a chosen host.
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A fix for a race condition, a new validate_data_connection configuration variable, some other sanity/security checks, and a new ability to specifiy configuration variables on the commandline.
This release has been rewritten and restructured. The proxy can now also communicate with the server in passive mode. It is now possible to specify which ports the proxy should choose for the data connection.
Several new features such as IP-based access control based on both origin and destination, and the ability to act as a transparent proxy for a host (e.g., on an internal network).