使用道具 举报
iptables -N port25_burst
iptables -A port25_burst -p tcp -m limit --limit 10/second --limit-burst 10 -j RETURN
iptables -A port25_burst -p tcp -j REJECT --reject-with tcp-reset
iptables -I INPUT -p tcp --dport 25 -m state --state NEW -j port25_burst
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