FreyaSX is a simple and portable full-text search engine which runs stand-alone on diverse operating systems. It runs without background database or external command, and its data files are portable across platforms. It provides a search interface via HTTP by the bundled HTTP server (DeleGate).
Re: Reverse FTP proxy drop connection after download
Your comment about a specific problem in DeleGate is welcome to be posted to the open forum of DeleGate at http://www.delegate.org/feedback/.
Especially, posting the detailed log of DeleGate in
the trouble will be helpful for the author to locate the cause of the problem.