Ive been getting a High level of DoS attacks since registering my static ips rDNS. No damage yet but im always wanting to be safe. Could you please give me some tips on fine tuning the built in firewall in ISPconfig. Is it possible to change the root name for CentOS without interupting ISPconfig and how can i do this. Where are the settings for the firewall thats built into ISPconfig and will protect the whole system or just ports used for ISPconfig. Thanks for any recommendations.