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| Author | Forum: PowerTCP SSL for ActiveX Topic: SecureFTPServer - limiting TCP connections |
| PeteY From: London, United Kingdom Posts: 34 Member Since: 01/13/03 |
posted July 23, 2003 8:47 AM I have developed a program using SecureFTPServer. Obviously I can control the number of concurrent FTP sessions as each new session generates a Login event. However there doesn't appear to be any way of limiting TCP connections and it strikes me some malicious person could launch some some of TCP flood attack by connecting to my server but not logging on. Is there any way of preventing this or do I have to rewrite my code using the TCP/Daemon/and or Server tools? If I do this is there any way of linking TCP receive events into the events within the SecureFTPServer control? Thanks Pete Y. |
Tony Priest From: Utica, NY USA Posts: 8466 Member Since: 04/11/00 |
posted July 23, 2003 8:59 AM Unfortunately, I do not know of a way to provide the security that you desire. By the time we notify you of a login, the connection has already been accepted by the Winsock layer. We do not provide you with a way of "previewing" before accepting. You may be able to write your own FTP server using the Daemon control of the Winsock tool (it has an accept event), but you would have to do it from scratch. It would not interact with our FTP Server control. If you find can do what you want using the Daemon, you may be able to write some kind of proxy that accepts the first attempt and then forwards it to the FTPserver. |
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