H3C Technologies H3C WX3000 Series Unified Switches - Manual (Page 44)

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To do… Use the command… Remarks
Set the history command
buffer size
history-command max-size value
Optional
The default history command buffer
size is 10. That is, a history command
buffer can store up to 10 commands by
default.
Set the timeout time of
the VTY user interface
idle-timeout minutes [ seconds ]
Optional
The default timeout time of a user
interface is 10 minutes.
With the timeout time being 10 minutes,
the connection to a user interface is
terminated if no operation is performed
in the user interface within 10 minutes.
You can use the idle-timeout 0
command to disable the timeout
function.
Note that if you configure not to authenticate the users, the command level available to users logging in
to the switching engine depends on the user privilege level level command
Configuration Example
Network requirements
As shown in Figure 4-1 , assume current user logs in using the oap connect slot 0 command, and the
user level is set to the manage level (level 3). Perform the following configurations for users logging in
through VTY 0 using Telnet.
z
Do not authenticate the users.
z
Commands of level 2 are available to the users.
z
Telnet protocol is supported.
z
The screen can contain up to 30 lines.
z
The history command buffer can contain up to 20 commands.
z
The timeout time of VTY 0 is 6 minutes.
Figure 4-1 Network diagram for Telnet configuration (with the authentication mode being none)
RS-232 serial
interface Console port
PC
Console cable
Switching engine
Configuration procedure
# Enter system view.
<device> system-view
# Enter VTY 0 user interface view.
[device] user-interface vty 0
# Configure not to authenticate Telnet users logging in through VTY 0.
[device-ui-vty0] authentication-mode none
# Specify commands of level 2 are available to users logging in through VTY 0.
[device-ui-vty0] user privilege level 2