Changing the lockout period after three password input errors during Telnet/SSH login on the USG2000&5000&6000

Change the lockout period after incorrect password input during Telnet/SSH login on the USG2000&5000&6000 as follows:

Set the lockout period of the VTY interface to 20 minutes.
system-view

[sysname] user-interface vty 0 4

[sysname-ui-vty0-4] lock lock-timeout 20

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