Configuration manual
7. System Management
82
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Enter
the
global
configuration mode.
configure terminal
-
Configure to save history
commands.
service shell-history
Mandatory.
By default, the history
command saving function
is enabled.
7.2.8
Configure the Login Security Service
Configuration Condition
None
Enable the System Login Security Service
To enhance the system security, the device provides the system login security service function.
The functions include:
Prevents brute force cracking of user login passwords.
Prevents the fast connection function.
The function of brute force cracking prevention prevents malicious illegal users from forcedly
cracking the user name and password for logging in to the device. If the system finds that the
number of continuous login authentication failures of a user reaches the number specified by
the system, the system rejects the login request from the IP address within the specified
period of time.
The function of preventing fast connections prevents illegal users from initiating a large
number of login requests within a short period time because this may occupy a lot of system
and network resources. If the number of repeated login connections from a user reached a
specified number, the system rejects the login connection from the IP address or the login
request from the user within the specified period of time.
Table 7-9 Enabling the system login security service
Step
Command
Description
Enter
the
global
configuration mode.
configure terminal
-
Enable the system login
security service.
service
login-secure
{telnet | ssh | ftp |
snmp}
Mandatory.
By default, the system
login security service is
enabled.
