In order to learn ISA2004, I contain the host of the dormitory into ISA servers. After a simple configuration, other computers can share the Internet.
Soon, I found a problem, FTP could not upload and modify, the FTP client prompt information is like the FTP server is not open to modify the right. In fact, I can affirm that FTP is writable, and on other people's computer (non-dormitory) can be used normally.
After the study, even if ISA2004 has an open 21-port, it can be written and modified by default. Because ISA2004 is installed by default, it is found in ISA2004-> Configuration in ISA2004 Management Interface -> plugin). Among them, the culprit of FTP cannot operate is hidden inside: The FTP Access Filter.
Left, everyone knows what to do!
