IPtables

UDP flood protection

Outbound UDP Flood protection in a user defined chain. iptables -N udp-flood iptables -A OUTPUT -p udp -j udp-flood iptables -A udp-flood -p udp -m limit --limit 50/s -j RETURN iptables -A udp-flood -j LOG --log-level 4 --log-prefix 'UDP-flood attempt: ' iptables -A udp-flood -j DROP