R2511-HP MSR Router Series Fundamentals Configuration Guide(V5)

126
NOTE:
W
hen you use the Internet Explorer browser to log in to the device operating as an FTP server, some FTP
functions are not available. This is because multiple connections are required durin
g
the lo
g
in process bu
t
the device supports only one connection at a time.
Configuring basic parameters
The FTP server uses one of the following modes to update a file when you upload the file (use the put
command) to the FTP server:
• Fast mode—The FTP server starts writing data to the storage medium after a file is transferred to the
memory. This prevents the existing file on the FTP server from being corrupted if an anomaly, such
as a power failure, occurs during a file transfer.
• Normal mode—The FTP server writes data to the storage medium while receiving data. This means
that any anomaly, such as a power failure, during file transfer might result in file corruption on the
FTP server. This mode, however, consumes less memory space than fast mode.
To configure basic parameters for the FTP server:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enable the FTP server.
ftp server enable By default, the FTP server is disabled.
3. Use an ACL to control FTP
access to the server.
ftp server acl acl-number
Optional.
By default, no ACL is used for access
control.
4. Configure the idle-timeout
timer.
ftp timeout minutes
Optional.
The default idle-timeout timer is 30
minutes.
If no data is transferred within the
idle-timeout time, the connection is
terminated.
5. Set the file update mode for
the FTP server.
ftp update { fast | normal }
Optional.
By default, normal update is used.
6. Return to user view.
quit
N/A
7. Manually release the FTP
connection established with
the specified username.
free ftp user username Optional.
Configuring authentication and authorization
Perform this task on the FTP server to authenticate FTP clients and specify the directories that
authenticated clients can access.
The following authentication modes are available:
• Local authentication—The device looks up the client's username and password in the local user
account database. If a match is found, authentication succeeds.