Talk:Simple ruleset for a server
Ping flood from single IP address not rate-limited by this ruleset
As reported in the netfilter mailing list, if the ping rules in inbound_ipv4 and inbound_ipv6 are uncommented, the ct accept rule in the inbound chain accepts all pings from a single IP address, regardless of the rate limit in the ping rules. If ping floods from a single IP address are of concern in your installation, you will need to modify this ruleset. One way to do so is suggested in the linked mailing list thread.