Enabling an FTP server

Follow these steps to enable an FTP server:

 

 

To do…

 

Use the command…

 

Remarks

 

 

 

Enter system view

 

system-view

 

 

 

 

 

 

 

 

 

 

 

 

Enable the FTP server function

 

ftp server enable

 

Required

 

 

 

 

 

Disabled by default.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

z

z

Only one user can access the device at a given time when the latter operates as an FTP server. Operating as an FTP server, the device cannot receive a file whose size exceeds its storage space. The clients that attempt to upload such a file will be disconnected with the FTP server due to lack of storage space on the FTP server.

To protect unused sockets against attacks, the device provides the following functions:

zTCP 21 is enabled only when you start the FTP server.

zTCP 21 is disabled when you shut down the FTP server.

Configuring connection idle time

After the idle time is configured, if the server does not receive service requests from a client within a specified time period, it terminates the connection with the client, thus preventing a user from occupying the connection for a long time without performing any operation.

Follow these steps to configure connection idle time:

 

To do…

 

Use the command…

 

Remarks

 

Enter system view

 

system-view

 

 

 

 

 

 

 

 

Configure the connection idle

 

ftp timeout minutes

 

Optional

 

time for the FTP server

 

 

30 minutes by default

 

 

 

 

 

 

 

 

 

 

Specifying the source interface and source IP address for an FTP server

You can specify the source interface and source IP address for an FTP server to enhance server security. After this configuration, FTP clients can access this server only through the IP address of the specified interface or the specified IP address.

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3Com WX3000 operation manual Enabling an FTP server, Configuring connection idle time, Ftp timeout minutes