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Configuration Guide - Basic Configuration

S7700 and S9700 V200R010C00

This document describes methods to use command line interface and to log in to the device, file operations, and system startup configurations.
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Using the undo Command Line

Using the undo Command Line

If a command line begins with the keyword undo, it is an undo command line. The undo command lines restore default settings of parameters, disable functions, or delete configurations. Almost each configuration command line has a corresponding undo command.

Some examples of using the undo command are listed as follows:

  • The undo command restores the default setting.

    The sysname command sets a device host name. For example:

    <HUAWEI> system-view
    [HUAWEI] sysname Server
    [Server] undo sysname
    [HUAWEI]
  • The undo command disables a specified function.

    The ftp server enable command enables the FTP server function on the device. For example:

    <HUAWEI> system-view
    [HUAWEI] ftp server enable
    Warning: FTP is not a secure protocol, and it is recommended to use SFTP.
    Info: Succeeded in starting the FTP server.
    [HUAWEI] undo ftp server
    Info: Succeeded in closing the FTP server. 
  • The undo command deletes a specified configuration.

    The header command configures the header information displayed on terminals when users log in. For example:

    <HUAWEI> system-view
    [HUAWEI] header login information "Hello,Welcome to Huawei!"

    Log out of the terminal and re-log in. A message "Hello, Welcome to Huawei!" is displayed before authentication. Run the undo header login command.

    Hello,Welcome to Huawei!
    
    Login authentication
    
    
    Password:
    Info: The max number of VTY users is 20, and the number
          of current VTY users on line is 5.
          The current login time is 2012-06-09 04:46:00.
    <HUAWEI> system-view
    [HUAWEI] undo header login

    Log out of the terminal and re-log in. No message is displayed before authentication.

    Login authentication
    
    
    Password:
    Info: The max number of VTY users is 20, and the number
          of current VTY users on line is 5.
          The current login time is 2012-06-09 04:52:10.
    <HUAWEI> 
NOTE:

The command output provided here is used for reference only. The actual output information may differ from the preceding information.

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Updated: 2019-04-18

Document ID: EDOC1000141895

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