Your VGS comes with the IPtables firewall installed by default.

If you have opted to use the Plesk Control Panel, the firewall is pre-configured for use with it. 

If you need to make modification to the Access Control List (ACL) or otherwise configure the firewall, you may do so yourself from the command line or contact Support if you need us to configure it for you. 

Please include the requested information detailed in "How do I request changes to my firewall settings?"

In the event of a Denial of Service (DoS) or other large scale attack or intrusion attempt, we will automatically protect your server with our border firewall appliances.