3Com Switch 7754, Configuration Manual

Page: 805 / 940

FTP Configuration 805
Configuration procedure
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Only one user can access a Switch 7750 at a given time when the latter
operates as an FTP server.
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FTP services are implemented in this way: An FTP client sends FTP requests to
the FTP server. The FTP server receives the requests, perform operations
accordingly, and return the results to the FTP client.
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To prevent unauthorized accesses, an FTP server disconnects a FTP connection
when it does not receive requests from the FTP client for a specific period of
time known as the connection idle time.
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A Switch 7750 operating as an FTP server cannot receive a file whose size
exceeds its storage space. A client attempting to upload such a file will be
disconnected from the FTP server due to lack of storage space on the FTP
server.
Authentication and authorization configuration
An FTP server authenticates an FTP client by the user name and the password it
provides. When an FTP client passes the authentication, the authorization is done
by allocating the FTP client a work directory. An FTP server provides services to the
FTP clients that are both authenticated and authorized.
The configurations such as configuring user name, password, the way to display
passwords, service type are performed on FTP servers. Refer to the information
about the
local-user , local-user password-display-mode , password , and
service-type commands in “Configuring the Attributes of a Local User” on page
523.
Displaying FTP server configuration
After the above configurations, you can run the display command in any view to
display the information about the FTP server and verify your configurations.
Table 639 Configure an FTP server
Operation Command Description
Enter system view system-view -
Enable the FTP server function ftp server enable Required
By default, the FTP server
function is disabled.
Set the connection idle time ftp timeout minutes Optional
The default connection idle
time is 30 minutes.
Table 640 Display FTP server information
Operation Command Description
Display the information about
FTP server configurations on a
switch display ftp-server These commands can be
executed in any view.
Display the currently online
FTP client display ftp-user