CPanel / WHM, Security

How to configure APF to prevent DDOS attack

How to configure APF to prevent DDOS attack

Relatively new to APF is the new AntiDOS feature which can be found in: /etc/apf/ad

The log file will be located at /var/log/apfados_log so you might want to make note of it and watch it!

vi /etc/apf/ad/conf.antidos


USER = “root”

There are various things you might want to fiddle with but I'll get the ones that will alert you by email.

# [E-Mail Alerts]
Under this heading we have the following:

# Organization name to display on outgoing alert emails
CONAME="Your Company"
Enter your company information name or server name..

# Send out user defined attack alerts [0=off,1=on]
Change this to 1 to get email alerts

# User for alerts to be mailed to
USR="[email protected]"
Enter your email address to receive the alerts

Save your changes and quit the file

Restart the firewall:

/usr/local/sbin/apf -r