Account Lockout; Anti-Dos Attack - Dahua NVR21-4KS3 Series User Manual

Enter the IP address, start port and end port, and then click OK.
● IP segment.
Enter the start address and end address, starting port and ending port, and then click
OK.
● MAC address.
Enter the MAC address, and then click OK.
Step 5 Click Apply.

5.14.3.2 Account Lockout

Procedure
Step 1 Select Main Menu > SECURITY > Attack Defense > Account Lockout.
Step 2 Set parameters.
Parameter
Attempt(s)
Lock Time
Step 3 Click Apply.

5.14.3.3 Anti-DoS Attack

You can enable SYN Flood Attack Defense and ICMP Flood Attack Defense to defend the Device
against Dos attack.
Figure 5-283 Account lockout
Table 5-80 Account lockout parameters
Description
Set the maximum number of allowable wrong password entries. The
account will be locked after your entries exceed the maximum number.
Set how long the account is locked for.
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