4.7 FTP Messages Feature Page
The FTP Messages feature page illustrated in Figure 6
is a great way to create a series of banners that are presented when a
user connects to the FTP server, authenticates successfully to the FTP
server, disconnected from the FTP server or is prevented from
connecting because the server has reached its connection limit.
Figure 6. The FTP Messages feature page.
The message behavior is controlled by the following elements:
• Suppress Default Banner—If
enabled, this option suppressed the default welcome banner, including
FTP server type and version. This option doesn’t impact the display of
a custom banner message.
• Support User Variables in Messages—By enabling this setting, user variables such as BytesReceived, BytesSent, SessionID, SiteName, and UserName can be included in the messages.
• Show Detailed Messages for Local Requests—This
setting controls the behavior for displaying FTP error messages. If
enabled, detailed FTP error messages are displayed for connections made
locally on the server to facilitate troubleshooting.
4.8 FTP Request Filtering
The FTP Request Filtering feature page is used to define the list of Allow or Deny rules based on the specific elements:
• File Name Extensions—This
tab allows for the creation of filename extensions for which the FTP
service will either allow or deny access to the site. For example, an
administrator can prevent Internet clients from uploading any files
with the extension of *.txt or *.com.
• Hidden Segments—The
Hidden Segments tab should be used if you want to hide specific areas
of your FTP site. If hidden, the specific section will not be displayed
in the directory listings.
• Defined URL Sequences—This setting should be used to define the list of URL sequences for which the FTP service will deny access.
• Commands—The final
tab Commands defines the list of commands for which the FTP service
will either allow or deny access to further tighten security.
